Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The ghostly remains of an accidental sea.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Try not to get slimed in Tribeca.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A snapshot of the city's fascinating voodoo culture.

A one-of-a-kind collection of a unique medium.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

An emerald-green grotto just a short trip from Austin.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

"The House That Love Built" is shying away from "The House That Ghosts Love."

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

An obelisk marks the exact center of the continent, as per the calculations of the legendary Brazilian explorer Cândido Rondon.

A kaleidoscopic warehouse-maze of handmade neon signs.

Staves, storm-calling, and of course, necropants.

Architectural monsters are devouring this palace's every door and window.

The world's longest and deepest train tunnel.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The unbelievably opulent home built for an infamous newspaperman.

Trace the history of writing at this unusual North Carolina destination.