Caves that can't seem to quit producing the remains of prehistoric humans.

Home to some of the oldest hominid fossils ever found.

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

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

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

It celebrates the four men from South Africa who have won the Nobel Peace Prize.

A 19th-century relic of timekeeping.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

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.

The Cape of Good Hope is not quite as low as you can go on the African continent, but it's still geographically significant.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The only visible piece of San Francisco's most famous shipwreck.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

This hike brings visitors closer to Taipei 101, once the world’s tallest building, than any other trail.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

A 100-year-old Japanese command center is now a unique underground university walkway with periodic exhibits.

This historic 19th-century building was the center of British trade and diplomacy in Taiwan.

A thriving community of Taiwanese art.