The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

One of the most well-preserved temples of ancient Egypt.

An endless sea of white conical domes.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

A ghost town now swarming with dozens of prairie dogs.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A series of five defunct panopticon prisons in Cuba.

A Spanish-style estate that has traded black ties for rock concerts.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

Portlandia is the second-largest copper repoussé statue in the United States.

Tens of thousands of tiny birds swarm into one school chimney every fall.

In 1329, Christine Carpenter entered this small stone cell in the hopes of becoming a living saint.

Does being buried standing up help you get into heaven faster?

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

One of the windiest peaks in Crimea is home to an incredible set of cable bridges.