This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

A disastrous shipwreck and a tragic love story.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

An enormous concrete structure built over a nuclear crater.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

This quirky curiosity shop takes its cues from the world's bazaars.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

A terrific purveyor of natural history objects and curios.

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

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

A Natural History and Science Emporium.

Peek through the gates at this oasis from the city, full of Old English charm.

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

Visit the monolithic tomb of America's most famous general.

Little Red Lighthouse under the George Washington Bridge.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

Collect holy water from a Bronx grotto.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.