The map above shows the Buffalo area with a marker for UB North Campus. The marker was placed using the lat/long coordinates of the school.
This map shows the vacant lots throughout the city of Buffalo that is owned by the city. If you click on a point, a pop up will inform you of the value of that property. This layer was created by converting a shapefile to GeoJSON and then furthermore converting to a Java variable.
The Appalachian National Trail is shown on this map. This map was made in a similar fashion as the one above.