An angel that hatched from an egg!

Originally built for nuclear power plant workers, this church sits between apartment buildings.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

A museum dedicated to the centuries-old cave dwellings that housed marginalized communities on the outskirts of the former capital of Muslim Spain.

Open since 1912, this restaurant is one of the few left that serves chicken with lobster and other Catalan-style surf and turf staples.

Grab a slice of Catalonia’s famous flatbread in a space with ancient Roman roots.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

A settlement that was stopped in the middle of construction, leaving behind paved roads, curbs, light poles, a stormwater drainage system, and even a basketball court, but no houses.

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

A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

This replica of the Statue of Liberty is a quarter of the size of the real thing. It sits on the same latitude as the original, but on the other side of the world.

The world's longest tunnel with an undersea section.

The giant figure on the back of this turtle-shaped temple actually hides a memorial pendulum.

The largest volcanic caldera in Japan holds an entire city in its maw.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

This glass wall is gradually filling up with paper cranes, in honor of Hiroshima’s past and dedication to its future.

An eerie reminder to the horrors of World War II.

Peace Park and the Atomic Bomb Dome.

Steaming blood-red hot spring from hell.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”