Exxon Pumping Facility

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

One of the oldest suspension bridges in the world blends in perfectly with a medieval castle.

Boats and fish both find their way through this massive hydroelectric structure.

The morning of January 9, 1965, over 46 million cubic meters of earth, rock, and snow broke free, obliterating a section of the highway below.

Construction of this bridge was once described as an "act of violence" against a neighboring country.

Unrefined, uneven, and unstable—this is the real McCoy of Pakistani suspension bridges.

This rural bridge gave the government of West Virginia a red scare.

In the 16th century, a Franciscan monk pulled off a construction miracle by building a Roman-style aqueduct to save the town of Otumba, Mexico, from certain death.