The remote graves mark the mysterious deaths of four 19th century explorers.

A trio of giant wooden megaphones turn up nature's volume in this Estonian forest.

A black and white solution to the Bolivian city's traffic problems.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

The main gates have been locked since 1745 and will remain so until the Stuart Dynasty returns to the throne.

Some 4,000 individual tiles make up this striking blue billboard from the golden age of air travel.

This award-winning men's bathroom was just too beautiful to not allow women to see.

How Quincy, Florida became the richest town per capita due to one man's shrewd business acumen and taste for fizzy drinks.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The abandoned funicular tunnel was a secret base for the BBC during World War II.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

This peculiar Italian elevator runs both horizontally and vertically.

The profile of one ill-fated deacon was emblazoned forever on this church window during the Halifax explosion.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The oldest tavern in Lowell has dedicated fans of its fan.

An abandoned town is hidden in Great Smoky Mountains National Park.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

Spend the night in this formerly abandoned traditional Scottish village.

A painfully obvious spy house sits right across the street from the Russian Embassy.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

The pretty iron lamp is a reminder of the architecture underneath London's streets.