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 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.

From the Difference Engine to the Cray-1, all under one roof.

In the basement of a San Francisco performing arts center, a small museum dedicated to the history of showgirls.

Under the shadow of its towering parent tree, a rare specimen of sequoia produces ghostly white leaves.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.

A humble garage, world-famous for being the epicenter of a technology revolution.

In 1998, Larry Page and Sergey Brin briefly ran their fledgling company from this Silicon Valley garage.

The first high-tech company in the valley that actually worked with silicon devices.