The trip starts at the bottom, in Los Angeles (A, on the map).
Click on the lettered circles to open a series of pictures. The pictures are best on a large, high resolution monitor...otherwise, you'll have to scroll around.
There are brief descriptions in the lower left of each shot.
Click on the right side of the picture to advance, and on the left side to go back.
Click the "X" or in space to exit the series.
Again, the trip starts in Los Angeles, at the bottom (A, on the map).