Nokia Lumia 820 - How can I view venue maps with HERE Maps on my Windows Phone?

If indoor map of the venue is available, you can view it by tapping the grey building icon. To select the floor in the building, tap the floor icon in the map view. To view the details of a place inside the building, tap the desired place in the indoor map.

To return back to the normal map view, tap the map area outside the building.

Note that an online connection is needed to view the venue maps.