Washington takes command of American army at Cambridge

Niagara suspension bridge BW

Niagara suspension bridge painting

Girard Avenue Bridge Philidelphia 1874

Iron towers of the Niagara suspension bridge

bridge at Antietam

building of Brooklyn bridge

Rail suspension bridge

Brookyln Bridge before 1910

steel railroad bridge over Misissippi river 1874

old stone towers of the Niagara suspension bridge

Manhattan Bridge Construction 1909

Jim Bridger

drawbridge

ice bridge Niagara Falls 1875

Tacoma bridge collapse

Whirlpool Rapids Bridge

ice bridge Niagara Falls

drawbridge

Brooklyn Bridge built

airplane passenger bridge

Tower Bridge in London

Niagara suspension bridge

Pontoon bridge across the James River at Richmond