Bridges

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

These medieval wooden bridge pillars appeared out of nowhere in the aftermath of a huge earthquake.

This unassuming bridge is most likely one of Michelangelo's unfinished masterworks.

The only remaining section of an aqueduct that used to supply water to Manila during the Spanish occupation.

This sandstone marvel of nature is worth a stop along Highway 65.

Sometimes called the “Little Golden Gate," this bright yellow structure is the last driveable suspension bridge in Arkansas.

A mythological Celtic beast built with thousands of colorful tiles stands guard over a historic canal junction.

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

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

A colony of Mexican free-tailed bats live under the bridge and take flight at sundown all summer long.

The longest floating boardwalk in the United States.

Constrained by time and topography, this civil engineering landmark was constructed 100 feet above Starrucca Creek over the course of a single year.

In the middle of the Alaskan wilderness, lies a train trestle to nowhere.

A natural sandstone bridge nestled within a mature forest in southern Illinois.

This replica of Michigan's mighty Mackinac Bridge is more than 200 times smaller than its northern counterpart.