An unfinished tomb carved into a giant boulder in the Arabian Desert.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

A giant concrete Brutalist water tower in suburban Johannesburg.

The world's largest pineapple building honors Bathurst's favorite fruit.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

Largest cave system in Africa.

This historic observatory was established to keep shipwrecks from littering the Cape of Good Hope.

The tallest residential building in Africa is an unsettling Brutalist monolith.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Over a million items cram the shelves at Africa's largest shop of used and rare books.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

Step inside Lucy, the world's largest "elephant."

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

This research center for rare prosimians is studying how they sleep to help prolong human life.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.