A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

World War II bunker still standing on the New Jersey beach.

Step inside Lucy, the world's largest "elephant."

The private island of Yale's elite Skull & Bones society is kind of a dump.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

The 32nd president's sprawling cottage sits on an island enclave jointly managed by the U.S. and Canada.

A quarter mile off the coastal tip of Maine you'll find the "Beloved Island" of Franklin Delano Roosevelt.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

A historic coal mine that doubles as a museum and tourist attraction.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

A castle built for love, and abandoned due to heartbreak.

This tiny little island has, as the name says, just enough room for its single house.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The largest tidal whirlpool in the Western Hemisphere.

Iconic rock formations that allow for exploration during high or low tide.

A rare opportunity to drive across the ocean floor.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.