2. Bradbury Building

Probably the most amazing office building in the world, it is like no other. Built at a time (the 1890s) when electric lighting was in its infancy, the interior atrium of the building is entirely lit by sunlight channeled from the roof! It was designed back then to look like a building would look in the year 2000, as inspired by a science fiction book of the era. The scene of many movies. Don't miss this one, admission is free!