GeoGuessr is a geography game which takes you on a journey around the world and challenges your ability to recognize your surroundings using Google Maps streetview.
"this incredible Google Streetview easter egg. Click this link to the map of Earl's Court Road, then click the double-white arrows directly in front of the call box. Immediately you're transported inside the Doctor's famous time machine, complete with a detailed 360 degree view of its interior and various controls."