When you consider San Francisco is built atop sand dunes and rocks that create perpendicular inclines (and buildings are made to move with the Earth), everything -- including your overpriced apartment -- is an architectural wonder in this inconvenient, unlikely town. But these seven man-made standouts are the REAL treasures. From the iconic to the unknown, these are the seven wonders of SF.
Golden Gate Bridge
Not just an SF landmark, this breathtaking icon is considered one of the top 10 construction achievements of the 20th century (as well as an international symbol of California and the US in general). The feat of engineering started in 1933 and was helmed by Joseph Strauss, a young engineer/poet whose blind ambition led him to downplay and undercompensate the huge contributions made by his fellow architects, Irving Morrow and Charles Alton Ellis. Still, his tunnel-vision drive likely contributed to the construction taking just four years and coming in $1.7 million below budget. At just $35 million, the biggest cost of building the bridge was the loss of the 11 steelworkers who fell to their deaths during construction.