This tiny structure was built by the creator of the Brooklyn Bridge.

A museum in rural Utah documents the history of the Japanese Americans who were forcibly relocated there.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

This hidden workshop is filled with molds of France's most iconic sculptures.

A hidden workshop for creating and restoring Papal mosaic masterpieces.

Two World War II aircraft lie within the jungle around this abandoned runway.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

This ancient goddess temple inspired the design of India’s Parliament House.

The smallest restaurant in the world.

A sharp sculpture made of thousands of pieces of jagged glass.

A retro walk through the history of the tube.

The bizarre headgear looks like it was made for a fool, not a king.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

Hundreds of iconic jazz records were made in this church-like space.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

Dinosaur eggs were first discovered at these fiery red cliffs.

A tiny collection of traditional Japanese woodblock prints, open only when the owner feels like it.

To enter the lower hall of this temple, you must first walk through a dragon.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

Legend says the goddess this shrine honors curses any couples that pass by.

The unbelievably opulent home built for an infamous newspaperman.

The tower in this 1,000-year-old mud-brick village seems to vibrate for no apparent reason.