Apennine Tunnel

Apennine AP uh nyn, Tunnel, is a train tunnel on the Florence-Bologna railroad line in... More >>

Bridge

Bridge is a structure used by people and vehicles to cross areas that are obstacles to travel.... More >>

Brooklyn Bridge

Brooklyn Bridge is a suspension bridge over the East River. It connects the boroughs of Brooklyn... More >>

Channel Tunnel

Channel Tunnel is a railway tunnel beneath the English Channel. The "Chunnel" links the United... More >>

Ford

Ford is a place where a stream or river can be crossed. During early times, people had to cross a... More >>

Frejus Tunnels

Frejus, fray ZHOOS, Tunnels are two tunnels--one a railroad tunnel and the other a motor-traffic... More >>

George Washington Bridge

George Washington Bridge over the Hudson River connects New York City at 178th Street with Fort... More >>

Golden Gate Bridge

Golden Gate Bridge is one of the largest and most spectacular suspension bridges in the world. It... More >>

Haora Bridge

Haora Bridge, also called Howrah Bridge, is a major bridge in northeastern India that carries... More >>

Hoosac tunnel

Hoosac, HOO suhk, tunnel is a 25,081-foot (7,645-meter) tunnel through the Berkshire Hills in... More >>

Hudson River tunnels

Hudson River tunnels provide links between Manhattan Island and New Jersey. Manhattan, the heart... More >>

Lincoln Tunnel

Lincoln Tunnel is a tunnel for motor traffic under the Hudson River. It joins midtown New York... More >>

Moffat Tunnel

Moffat, MOF uht, Tunnel is one of the longest railroad tunnels in the world. It cuts through... More >>

Peace Bridge

Peace Bridge is a symbol of the years of friendship between the peoples of the United States and... More >>

Pontoon bridge

Pontoon bridge is a bridge supported by pontoons (flat-bottomed boats), metal cylinders, or other... More >>