1. A method, comprising: performing, by one or more computing devices: receiving input indicating a location in a map; receiving two-dimensional mapping information for the map, wherein the two-dimensional mapping information includes a respective footprint for one or more objects; receiving height information for the one or more objects, wherein the height information includes height values corresponding to one or more locations in the map; rendering three-dimensional representations of the one or more objects based on the height information, wherein said rendering comprises extruding a respective footprint of each given object of the one or more objects to create a respective three-dimensional version of the given object; and displaying a map view of the location including the three-dimensional representations of each of the one or more objects.