A uniquely preserved neo-Gothic church that is now home to a collection of art and woodcarvings.

The grave of the famous painter is marked by a simple stone in the ground.

A helicopter memorial commemorating what was once the only way to access this West Berlin exclave.

A space-grade telescope mirror lies discarded in the shrubs.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This spectrum of a star was observed by one of the world's most accurate spectrographs. 

A historical observatory still in use by modern astronomers.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

These 250-year-old wagon tracks are a lasting sign of Dutch migrants crossing the mountains.

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

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

From atop a hill at the center of Cape Town, a cannon has been signalling the time since 1806.

The first successful human heart transplant is depicted through wax figures at the hospital where it the surgery took place.

This arch made out of whale bones is a remnant of South Africa's whaling history.

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

A memorial to the only dog ever officially enlisted in the Royal Navy.

A 19th-century relic of timekeeping.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

The remains of a 12th-century chapter house in Golden Gate Park.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

This massive redwood tree has stood in Northern California for nearly 2,000 years.

The hands on this clock appear to be created by two workers sweeping debris into careful positions.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.