Engineering

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.

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.

The ruins of a failed dam that was built over land later described as a "sponge."

The predecessor to this bridge was depicted in a famous Japanese woodcut print that influenced Van Gogh.

This memorial and the seawall that it stands near are powerful symbols of the island’s resilience.

This distinctive blue and white jet fighter is a symbol of the area’s relationship with aviation.

An exceptional engineering feat that facilitates the migration of salmon upstream during their breeding season.

This historic suspension bridge is one of three remaining swinging bridges in Michigan, and one of the few swinging bridges left in North America.

This statue of one of the engineers who created the London Underground hides a ventilation shaft for the tube lines that run under the street.

The world’s oldest boat lift is also known in the United Kingdom as the "Cathedral of the Canals" and one of the "Seven Wonders of the Waterways."

A complex of ancient Buddhist rock-cut caves with a large, well preserved prayer hall.

These remnants of Old London Bridge possess unique acoustics that allow for whispered conversations to carry from one side to the other.

The engineer of the Imperial Canal of Aragon installed this fountain to show skeptics he had achieved his aim.

The tallest stone dam in Poland was opened by Kaiser Wilhelm II himself.