This diesel train serviced the Brooklyn waterfront for more than three decades.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A miniature train theme park, free to the public, laying at the base of the Santa Monica Mountains.

Where Saint-Martin ends and Sint Maarten begins (or vice versa).

An unexpected must-see for fans of Star Wars who find themselves on the beautiful island of Sint Maarten.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

A roundabout in the West Indies that pays tribute to a bus driver who brokered no-nonsense on the school route.

Explore a misty river canyon from a metal bridge system.

The last remaining 19th-century mile marker along the historic Ocean Parkway.

A facility built in 1992 for an underground nuclear test remains in place today.

A large, remote national monument highlights the typical geologic structure seen in Nevada.

A remarkably well-preserved stage stop from the late 19th century in a remote part of Nevada.

A stretch of highway even lonelier than the so-called "Loneliest Road in America."

This colossal underground passage paved the way for large-scale drainage and access tunnels across the U.S., but it almost wasn’t built.

Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

This maintained cabin is where Josie Morris, an occasional associate of Butch Cassidy, lived out the last 50 years of her life by herself.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

One of only two civilian settlements in the desolate lands of chilly Antarctica.

The remains of a doomed Antarctic plane, buried beneath layers of ice and snow, await those willing to do a bit of digging.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.