It's impossible to imagine San Francisco without certain landmarks.

What would the city be without curvy Lombard Street, luxurious Union Square or, gasp, the Golden Gate Bridge? But once upon a time, these now-iconic landmarks were in their infant stages. Take a crazy look back at some postcard views before they were famous.

The San Francisco cable car is one of only two moving landmarks in the United States (the Saint Charles streetcar in New Orleans is the other). The cable car was tested for the first time on April 2, 1873 by Andrew Hallidie (the Clay Street line was the very first)...and the rest is history. (via FoundSF)