The fifth-longest natural arch in the world, and the longest outside China.

Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

A special train service transported Sydney's dead from this station to "Necropolis Receiving Houses" at Rookwood Cemetery.

A self-funded cemetery with a long list of inhabitants.

Come for the flowers, stay for the bats!

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Lebanese castle built by one man, over a lifetime.

A patchwork of ruins from various civilizations in one of the world's oldest continually inhabited cities.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

The largest hewn stone in history.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Not quite the menace it once was, this monster still has some chops.

Nine Gardens in one—with tea service.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The quintessential Japanese rock garden has existed for more than 500 years.

Eighty million natural history specimens call this gargantuan museum home.

Japanese national treasure originally built in 593 CE.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."