A modern Nordic Pompeii on the Icelandic island of Heimaey.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A Manhattan Episcopal church with an eerie underground crypt.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

France's most famous cemetery, with some of its most curious tombs.

Notorious artist squat renovated into legal studios.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

The celebrated eyesore created by starry-eyed sweethearts.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

A crumbling hospital from the 1850s on Roosevelt Island.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Storage warehouse of the rich and famous.

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

19th century cemetery hidden in Brooklyn's Prospect Park.

A graffiti Mecca welcoming artists from around the world.