Google Maps Street View lets photographers take 360 degree panoramas and then place them on the map. These Photo Spheres are usually off of the route the Google Map camera vehicles make, meaning you are stuck in that spot - you can't move forward or backwards. But it allows photographers to find particulalry picturesque spots. Here are a few that I like.
Above two images grabbed from the Photo Sphere, Pego do Inferno, by Emmanuel Gaziaux
Photo Sphere, Biogal, by Valter Jacinto
Photo Sphere, stairs down to Praia da Falésia, by Mike C.