San Fancisco Bay Bridge 2

A photo of the Bay Bridge taken from much further away showing the two parts with the island tunnel in the middle.

Here's some Bay Bridge Facts:
Bridge type: Suspension, cantilever and truss
Length: 23,000 feet (4.5 miles)
Total length, including approaches: 8.4 miles.
Length of west suspension bridge: 9260 feet (2822.4 meters)
Vertical clearance of west bridge: 220 feet
Tower height: 526 feet
Length of east bridge: 10,176 feet
Vertical clearance of east bridge: 191 feet
Tunnel: 76 feet wide, 58 feet high, 1700 feet long
Lanes: two levels of five lanes each, 270,000 vehicles per day
Opened: November 12, 1936
Cost: $77 million