This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This rustic old building is said to be the most photographed barn in America.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

The home of half the world's population of critically endangered mountain gorillas.

These unusual rooms on wheels are holdovers from the 1960s.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

The best place in the world to buy tinned fish.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

An ancient octagonal weather station named for the eight Greek gods of wind.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

Once a year, thousands of naked cyclists flood the streets of a Seattle neighborhood.

France's national museum of scientific and industrial instruments.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

This French colonial post office is arguably the grandest in all of Southeast Asia.

A museum dedicated to the history of Tokyo's often-overlooked working-class district.