An engineering marvel, they built this in 1930's i...

An engineering marvel, they built this in 1930's in 5 years and its maintained so well to last another century or forever. Take a bow you guys who built it.
My most visited place in US and would like to go there again if I visit US west coast again. Spend 1/2 day here in my opinion. Walk the length of the bridge and its awesome. Any season of the year, this is a must do if one visits San Francisco.