Google Street View serves daily millions of panoramas
and user photos all across the world.  This talk will 
give a short background on the project. Then we will 
discuss the how photos and panoramas are navigated 
using 2D and 3D techniques from computer vision and
computational geometry.  Finally some demos will show 
newly launched features so that someone familiar with 
Street View panoramas can naturally navigate through 
a heterogeneous set of photos.