Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

Take a monster truck tour around an ostrich farm in the middle of the desert.

Commercial aircraft storage facility, where you can see a TWA 747.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Underground tunnels remain beneath this abandoned mental asylum.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

A short interpretive trail about one of the first human cultures in North America.

Out of a desire to feed hungry soldiers, a franchise-altering idea was born.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.

This church on a Tohono O'Odham reservation has stood since 1797.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

Despite a recent paint job, the factory still sits empty.

Browse an impressive collection of passenger and military aircraft dating back to World War II.

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

Visitors to this public park will also find the ruins of an old western fort.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

This bomb shelter-themed bar has barely changed since it opened.