diff --git a/generator/CMakeLists.txt b/generator/CMakeLists.txt
index 7e759bd037..3de0346048 100644
--- a/generator/CMakeLists.txt
+++ b/generator/CMakeLists.txt
@@ -124,7 +124,6 @@ set(
   osm_o5m_source.hpp
   osm_source.cpp
   osm_xml_source.hpp
-  place_node.hpp
   place_processor.cpp
   place_processor.hpp
   platform_helpers.cpp
@@ -207,6 +206,7 @@ set(
   translator_world.hpp
   translators_pool.cpp
   translators_pool.hpp
+  tree_node.hpp
   type_helper.cpp
   type_helper.hpp
   ugc_db.cpp
diff --git a/generator/complex_generator/complex_generator.cpp b/generator/complex_generator/complex_generator.cpp
index ee2ca24590..7c0d60be04 100644
--- a/generator/complex_generator/complex_generator.cpp
+++ b/generator/complex_generator/complex_generator.cpp
@@ -100,7 +100,7 @@ MAIN_WITH_ERROR_HANDLING([](int argc, char ** argv) {
   if (FLAGS_debug)
   {
     finalProcessor->SetPrintFunction(
-        static_cast<std::string (*)(generator::hierarchy::HierarchyLine const &)>(
+        static_cast<std::string (*)(generator::hierarchy::HierarchyEntry const &)>(
             generator::hierarchy::DebugPrint));
   }
   rawGenerator.GenerateCustom(translator, finalProcessor);
diff --git a/generator/final_processor_intermediate_mwm.cpp b/generator/final_processor_intermediate_mwm.cpp
index 36d78e6477..7da6546fa9 100644
--- a/generator/final_processor_intermediate_mwm.cpp
+++ b/generator/final_processor_intermediate_mwm.cpp
@@ -546,7 +546,7 @@ std::shared_ptr<hierarchy::HierarchyLineEnricher> ComplexFinalProcessor::CreateE
 void ComplexFinalProcessor::Process()
 {
   ThreadPool pool(m_threadsCount);
-  std::vector<std::future<std::vector<hierarchy::HierarchyLine>>> futures;
+  std::vector<std::future<std::vector<hierarchy::HierarchyEntry>>> futures;
   ForEachCountry(m_mwmTmpPath, [&](auto const & filename) {
     auto future = pool.Submit([&, filename]() {
       auto countryName = filename;
@@ -567,7 +567,7 @@ void ComplexFinalProcessor::Process()
     });
     futures.emplace_back(std::move(future));
   });
-  std::vector<hierarchy::HierarchyLine> allLines;
+  std::vector<hierarchy::HierarchyEntry> allLines;
   for (auto & f : futures)
   {
     auto const lines = f.get();
@@ -576,7 +576,7 @@ void ComplexFinalProcessor::Process()
   WriteLines(allLines);
 }
 
-void ComplexFinalProcessor::WriteLines(std::vector<hierarchy::HierarchyLine> const & lines)
+void ComplexFinalProcessor::WriteLines(std::vector<hierarchy::HierarchyEntry> const & lines)
 {
   std::ofstream stream;
   stream.exceptions(std::fstream::failbit | std::fstream::badbit);
diff --git a/generator/final_processor_intermediate_mwm.hpp b/generator/final_processor_intermediate_mwm.hpp
index e041e4dc1e..de91b0c26b 100644
--- a/generator/final_processor_intermediate_mwm.hpp
+++ b/generator/final_processor_intermediate_mwm.hpp
@@ -141,7 +141,7 @@ public:
 private:
   std::shared_ptr<hierarchy::HierarchyLineEnricher> CreateEnricher(
       std::string const & countryName) const;
-  void WriteLines(std::vector<hierarchy::HierarchyLine> const & lines);
+  void WriteLines(std::vector<hierarchy::HierarchyEntry> const & lines);
 
   hierarchy::PrintFunction m_printFunction = hierarchy::PrintDefault;
   std::string m_mwmTmpPath;
diff --git a/generator/hierarchy.cpp b/generator/hierarchy.cpp
index 4b87cc1dc1..aad80bd263 100644
--- a/generator/hierarchy.cpp
+++ b/generator/hierarchy.cpp
@@ -53,7 +53,7 @@ uint32_t GetTypeDefault(FeatureParams::Types const &) { return ftype::GetEmptyVa
 
 std::string GetNameDefault(StringUtf8Multilang const &) { return {}; }
 
-std::string PrintDefault(HierarchyLine const &) { return {}; }
+std::string PrintDefault(HierarchyEntry const &) { return {}; }
 
 HierarchyPlace::HierarchyPlace(FeatureBuilder const & fb)
   : m_id(MakeCompositeId(fb))
@@ -145,8 +145,7 @@ HierarchyLinker::Node::PtrList HierarchyLinker::Link()
     if (!parentPlace)
       continue;
 
-    parentPlace->AddChild(node);
-    node->SetParent(parentPlace);
+    tree_node::Link(node, parentPlace);
   }
   return m_nodes;
 }
@@ -206,7 +205,7 @@ boost::optional<m2::PointD> HierarchyLineEnricher::GetFeatureCenter(CompositeId
   return ftPtr ? feature::GetCenter(*ftPtr) : boost::optional<m2::PointD>();
 }
 
-std::string DebugPrint(HierarchyLine const & line)
+std::string DebugPrint(HierarchyEntry const & line)
 {
   std::stringstream stream;
   stream << std::fixed << std::setprecision(7);
@@ -243,9 +242,9 @@ void HierarchyLinesBuilder::SetHierarchyLineEnricher(
   m_enricher = enricher;
 }
 
-std::vector<HierarchyLine> HierarchyLinesBuilder::GetHierarchyLines()
+std::vector<HierarchyEntry> HierarchyLinesBuilder::GetHierarchyLines()
 {
-  std::vector<HierarchyLine> lines;
+  std::vector<HierarchyEntry> lines;
   lines.reserve(m_nodes.size());
   std::transform(std::cbegin(m_nodes), std::cend(m_nodes), std::back_inserter(lines),
                  [&](auto const & n) { return Transform(n); });
@@ -262,9 +261,9 @@ m2::PointD HierarchyLinesBuilder::GetCenter(HierarchyBuilder::Node::Ptr const &
   return optCenter ? *optCenter : data.GetCenter();
 }
 
-HierarchyLine HierarchyLinesBuilder::Transform(HierarchyBuilder::Node::Ptr const & node)
+HierarchyEntry HierarchyLinesBuilder::Transform(HierarchyBuilder::Node::Ptr const & node)
 {
-  HierarchyLine line;
+  HierarchyEntry line;
   auto const & data = node->GetData();
   line.m_id = data.GetCompositeId();
   auto const parent = node->GetParent();
@@ -300,7 +299,7 @@ uint32_t GetMainType(FeatureParams::Types const & types)
 
 std::string GetName(StringUtf8Multilang const & str) { return GetRussianName(str); }
 
-std::string Print(HierarchyLine const & line)
+std::string Print(HierarchyEntry const & line)
 {
   std::stringstream stream;
   stream << std::fixed << std::setprecision(7);
diff --git a/generator/hierarchy.hpp b/generator/hierarchy.hpp
index 86c11e0726..bc7873c2a0 100644
--- a/generator/hierarchy.hpp
+++ b/generator/hierarchy.hpp
@@ -2,8 +2,8 @@
 
 #include "generator/feature_builder.hpp"
 #include "generator/gen_mwm_info.hpp"
-#include "generator/place_node.hpp"
 #include "generator/platform_helpers.hpp"
+#include "generator/tree_node.hpp"
 #include "generator/utils.hpp"
 
 #include "indexer/classificator.hpp"
@@ -31,16 +31,16 @@ namespace generator
 {
 namespace hierarchy
 {
-struct HierarchyLine;
+struct HierarchyEntry;
 
 using GetMainType = std::function<uint32_t(FeatureParams::Types const &)>;
 using GetName = std::function<std::string(StringUtf8Multilang const &)>;
-using PrintFunction = std::function<std::string(HierarchyLine const &)>;
+using PrintFunction = std::function<std::string(HierarchyEntry const &)>;
 
 // These are dummy functions.
 uint32_t GetTypeDefault(FeatureParams::Types const &);
 std::string GetNameDefault(StringUtf8Multilang const &);
-std::string PrintDefault(HierarchyLine const &);
+std::string PrintDefault(HierarchyEntry const &);
 
 // The HierarchyPlace class is an abstraction of FeatureBuilder to build a hierarchy of objects.
 // It allows you to work with the geometry of points and areas.
@@ -78,7 +78,7 @@ private:
 class HierarchyLinker
 {
 public:
-  using Node = PlaceNode<HierarchyPlace>;
+  using Node = tree_node::TreeNode<HierarchyPlace>;
   using Tree4d = m4::Tree<Node::Ptr>;
 
   explicit HierarchyLinker(Node::PtrList && nodes);
@@ -128,7 +128,7 @@ private:
 };
 
 // Intermediate view for hierarchy node.
-struct HierarchyLine
+struct HierarchyEntry
 {
   CompositeId m_id;
   boost::optional<CompositeId> m_parentId;
@@ -139,7 +139,7 @@ struct HierarchyLine
   uint32_t m_type = ftype::GetEmptyValue();
 };
 
-std::string DebugPrint(HierarchyLine const & line);
+std::string DebugPrint(HierarchyEntry const & line);
 
 class HierarchyLinesBuilder
 {
@@ -151,11 +151,11 @@ public:
   void SetCountryName(std::string const & name);
   void SetHierarchyLineEnricher(std::shared_ptr<HierarchyLineEnricher> const & enricher);
 
-  std::vector<HierarchyLine> GetHierarchyLines();
+  std::vector<HierarchyEntry> GetHierarchyLines();
 
 private:
   m2::PointD GetCenter(HierarchyBuilder::Node::Ptr const & node);
-  HierarchyLine Transform(HierarchyBuilder::Node::Ptr const & node);
+  HierarchyEntry Transform(HierarchyBuilder::Node::Ptr const & node);
 
   HierarchyBuilder::Node::PtrList m_nodes;
   GetMainType m_getMainType = GetTypeDefault;
@@ -168,7 +168,7 @@ namespace popularity
 {
 uint32_t GetMainType(FeatureParams::Types const & types);
 std::string GetName(StringUtf8Multilang const & str);
-std::string Print(HierarchyLine const & line);
+std::string Print(HierarchyEntry const & line);
 }  // namespace popularity
 }  // namespace hierarchy
 }  // namespace generator
diff --git a/generator/place_node.hpp b/generator/place_node.hpp
deleted file mode 100644
index 902bc5e506..0000000000
--- a/generator/place_node.hpp
+++ /dev/null
@@ -1,75 +0,0 @@
-#pragma once
-
-#include <memory>
-#include <utility>
-#include <vector>
-
-namespace generator
-{
-template <typename Data>
-class PlaceNode;
-
-namespace place_node_types
-{
-template <typename Data>
-using Ptr = std::shared_ptr<PlaceNode<Data>>;
-
-template <typename Data>
-using WeakPtr = std::weak_ptr<PlaceNode<Data>>;
-
-template <typename Data>
-using PtrList = std::vector<Ptr<Data>>;
-}  // place_node_types
-
-// This is a tree node, where each node can have many children. Now it is used to build a hierarchy
-// of places.
-template <typename Data>
-class PlaceNode
-{
-public:
-  using Ptr = place_node_types::Ptr<Data>;
-  using WeakPtr = place_node_types::WeakPtr<Data>;
-  using PtrList = place_node_types::PtrList<Data>;
-
-  explicit PlaceNode(Data && data) : m_data(std::move(data)) {}
-
-  void AddChild(Ptr child) { m_children.push_back(child); }
-  void SetParent(Ptr parent) { m_parent = parent; }
-  void SetChildren(PtrList && children) { m_children = std::move(children); }
-  void RemoveChildren() { m_children.clear(); }
-
-  bool HasChildren() const { return !m_children.empty(); }
-  bool HasParent() const { return m_parent.lock() != nullptr; }
-
-  PtrList const & GetChildren() const { return m_children; }
-  PtrList & GetChildren() { return m_children; }
-  Ptr GetParent() const { return m_parent.lock(); }
-  Data & GetData() { return m_data; }
-  Data const & GetData() const { return m_data; }
-
-private:
-  Data m_data;
-  PtrList m_children;
-  WeakPtr m_parent;
-};
-
-template <typename Data>
-size_t GetDepth(place_node_types::Ptr<Data> node)
-{
-  size_t depth = 0;
-  while (node)
-  {
-    node = node->GetParent();
-    ++depth;
-  }
-  return depth;
-}
-
-template <typename Data, typename Visitor>
-void Visit(place_node_types::Ptr<Data> const & tree, Visitor && visitor)
-{
-  visitor(tree);
-  for (auto const & subtree : tree->GetChildren())
-    Visit(subtree, visitor);
-}
-}  // namespace generator
diff --git a/generator/tree_node.hpp b/generator/tree_node.hpp
new file mode 100644
index 0000000000..c04bd6731c
--- /dev/null
+++ b/generator/tree_node.hpp
@@ -0,0 +1,79 @@
+#pragma once
+
+#include <algorithm>
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "base/stl_helpers.hpp"
+
+namespace tree_node
+{
+template <typename Data>
+class TreeNode;
+
+namespace types
+{
+template <typename Data>
+using Ptr = std::shared_ptr<TreeNode<Data>>;
+
+template <typename Data>
+using WeakPtr = std::weak_ptr<TreeNode<Data>>;
+
+template <typename Data>
+using PtrList = std::vector<Ptr<Data>>;
+}  // namespace types
+
+template <typename Data>
+class TreeNode
+{
+public:
+  using Ptr = types::Ptr<Data>;
+  using WeakPtr = types::WeakPtr<Data>;
+  using PtrList = types::PtrList<Data>;
+
+  explicit TreeNode(Data && data) : m_data(std::move(data)) {}
+
+  bool HasChildren() const { return !m_children.empty(); }
+  PtrList const & GetChildren() const { return m_children; }
+  void AddChild(Ptr const & child) { m_children.push_back(child); }
+  void AddChildren(PtrList && children)
+  {
+    std::move(std::begin(children), std::end(children), std::end(m_children));
+  }
+
+  void SetChildren(PtrList && children) { m_children = std::move(children); }
+  void RemoveChildren() { m_children.clear(); }
+
+  bool HasParent() const { return m_parent.lock() != nullptr; }
+  Ptr GetParent() const { return m_parent.lock(); }
+  void SetParent(Ptr const & parent) { m_parent = parent; }
+
+  Data & GetData() { return m_data; }
+  Data const & GetData() const { return m_data; }
+
+private:
+  Data m_data;
+  PtrList m_children;
+  WeakPtr m_parent;
+};
+
+template <typename Data>
+void Link(types::Ptr<Data> const & node, types::Ptr<Data> const & parent)
+{
+  parent->AddChild(node);
+  node->SetParent(parent);
+}
+
+template <typename Data>
+size_t GetDepth(types::Ptr<Data> node)
+{
+  size_t depth = 0;
+  while (node)
+  {
+    node = node->GetParent();
+    ++depth;
+  }
+  return depth;
+}
+}  // namespace tree_node