100,000 Markers & No Clustering

MillionMarkerMap

Jonathan Wagner of Scribble Maps fame has created a demo Google Map displaying 100,000 markers on one map. As you can see from the screenshot above that is enough markers to completely obscure the map tiles beneath.

Amateur map developers should of course not try this at home without wearing safety goggles and without the supervision of a qualified Google Maps Developer. 

Usually if you want to place a very large number of markers on a map you will want to use a marker clustering solution such as Mapeed. However, if you are feeling brave, Jonathan has been kind enough to provide the source code for his MillionMarkerMap.

Stockholm Bike Directions on Google Maps

Cykelreseplaneraren

This bicycle trip planner for Stockholm uses a combination of Google Maps and custom map tiles to provide cycling directions in the Swedish capital.

To use the route planner you just need to add a starting location and a destination. The best cycling route for your journey will then be displayed on the map and the directions listed in the map sidebar.

It is possible to add a number of other layers to the map, including a layer showing cycle paths in the city, bike parking locations and places with cycle pumps.