Eritrea's futuristic gas station is a nod to Italy's fascist history.

One of Western Africa's oldest mosques, this Timbuktu icon has stood for nearly 700 years.

Dental instruments from the illustrious history of American dentistry.

Oldest unrestored plantation house in America that is open to the public.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Putting the "mod" in "modular" since 2000.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

3,000 family pets and military animals are buried in this London graveyard.

Abstract dinosaur models in London.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

Wind power station for making famous Ketel One vodka.

This former railway facility is the oldest in Slovenia, and now houses a museum showcasing the history of steam locomotives.

Strange rumors surround the artist who created these solemn metal guard dogs.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

This man-made mound monument was built out of soil from all across the Polish empire.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

The world's most delightful not-NOT-religion welcomes visitors to the town of Templin, just like its more stoic peers.

This giant, 83-year-old ship elevator is an engineering feat to behold.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

Singapore's Ang Mo Kio Town Garden West is a social hotspot for songbirds and their humans.

At this monastery, monks make raw-milk cheese and use excess whey to create methane that powers their hot-water system.

In this medieval fish bowl, the carp weren't pets.