This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

Take an underground boat ride through a former hydraulic raceway that was built in the late 19th century.

The "last holdout of the Confederacy” actually sat at the edge of the Canadian border.

This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

A natural gas leak provides a flickering flame beneath a waterfall.

This two-room factory has been cranking out the musical signifier of zaniness for a century.

Where one of the worst train disasters in the country took place, leading to upgrades in rail safety.

An abandoned tuberculosis hospital moulders on into an uncertain future.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

There is beauty and history in the ruins of this former company town.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

This print shop boasts one of the largest pinball arcades in San Francisco.

Unusual books about food and drink abound in this 19th-century New York townhouse.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

This historic lighthouse was well known for the large number of women who served as its keeper.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

In the Mound Hill Cemetery resides the final resting place of the world's tallest couple.

Arlington Cemetery exhibit dedicated to death and grieving.

The site of a tragedy in 1908 that claimed the lives of 171 people and changed fire safety laws across the state.

This museum is dedicated to the first coast-to-coast highway.

This roadside stand packs 300-plus varieties of tomatoes, from "Maiden's Fire" to "Kaleidoscopic Jewel."