diff --git a/map_view_simple_example.py b/map_view_simple_example.py
index fabc09f..b3a098a 100644
--- a/map_view_simple_example.py
+++ b/map_view_simple_example.py
@@ -1,5 +1,21 @@
 import tkinter
 import tkintermapview
+import json
+import copy
+
+with open('./data/collinear_clean.geojson', 'r') as city_file:
+  city = json.load(city_file)
+  buildings = city['features']
+
+building_polygons = []
+
+for building in buildings:
+  building_polygon = []
+  if building['geometry']['type'] == 'Polygon':
+    for coordinate in building['geometry']['coordinates'][0]:
+      building_polygon.append((coordinate[1], coordinate[0]))
+    building_polygons.append({'id': building['id'],
+                              'polygon': copy.deepcopy(building_polygon)})
 
 # create tkinter window
 root_tk = tkinter.Tk()
@@ -15,13 +31,24 @@ map_widget.set_tile_server("https://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z
 # map_widget.set_tile_server("https://mt0.google.com/vt/lyrs=s&hl=en&x={x}&y={y}&z={z}&s=Ga", max_zoom=22)  # google satellite
 
 # set current position and zoom
-map_widget.set_position(45.497059, -73.578451, marker=False)  # Berlin, Germany
+map_widget.set_position(45.497059, -73.578451, marker=False)  # Montreal, Quebec
 map_widget.set_zoom(11)
 
 # set current position with address
 # map_widget.set_address("Berlin Germany", marker=False)
 
 def marker_click(marker):
-    print(f"marker clicked - text: {marker.text}  position: {marker.position}")
+  print(f"marker clicked - text: {marker.text}  position: {marker.position}")
 
-root_tk.mainloop()
+building_polygon_markers = []
+count = 0
+for building_polygon in building_polygons:
+  if count > 1000:
+    break
+  building_polygon_markers.append(map_widget.set_polygon(building_polygon['polygon'],
+                                                           fill_color='black',
+                                                           outline_color='black',
+                                                           name=building_polygon['id']))
+  count+=1
+
+root_tk.mainloop()
\ No newline at end of file