Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The remnants of a 1970 plane crash remain high in the Rocky Mountains.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

An abandoned munitions storage facility with a rich architectural history.

The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

The home of a 19th-century author who brought African-American folktales to the mainstream is now Atlanta’s oldest house museum.

Georgia’s last drive-in movie theater is a relic of a bygone era.

It’s all about the Benjamins at this Atlanta museum with interactive exhibits.

This Art-Deco movie palace is the oldest independent cinema in Atlanta.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Considered by many to be one of the most dangerous highways in Alaska.

The ghostly remains of what was once the world's richest copper mine.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

A thriving Black community was destroyed by an angry white mob at this site in 1923.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

A real (but thankfully not live) missile stands tall as a monument to the United States military in the small town of Cordele.