Augmented reality (AR) adds digital elements to a live view often by using the camera on a smartphone. Examples of augmented reality experiences include Snapchat lenses and the game Pokemon Go. Virtual reality (VR) implies a complete immersion experience that shuts out the physical world. (source)

Search any location, grab the "little yellow man" and drag him to the map.  This pulls you into a panoramic street view. You can also look at historical photos over time. 

Google Street View Gallery

Investigate artifacts in 3D by "placing them on a surface" and walking around them.

Augmented Reality - Landscapes and Rivers