This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

A museum within a museum, devoted to history's most questionable medical devices.

A priceless collection of the Nation's cryptologic history.

A derelict bit of transportation infrastructure hidden in the woods.

Coins and medals straight from the mint await visitors to this shop in the nation's capital.

A piece of outsider public art accompanied by a strange urban legend.

This multi-story wooden waterpark offers homemade thrills.

The Forest Service's surprisingly sophisticated collection of wildfire prevention art features America's most beloved bear.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

One woman's dream became a train hotel in her backyard.

The simple log cabin of a famed loner and naturalist stands preserved as a symbol of the ultimate DIY lifestyle.

Hundreds of samples of "Devil's Rope" hide in a defunct vintage elevator.

Step past the gas pumps and into a fine French bistro.

The last example of an innovative piece of surveying equipment now stands in its inventor's hometown.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

An abandoned mine serves as a stark memorial of when mercury was a valued strategic metal.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

This popular pitstop lives up to its name.

The author's beautiful and historic home is also a fully functioning goat farm.

Drink and learn at this striking ode to coffee culture and history.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.