This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Natural arch offers panoramic views of Yangshuo's karst hills.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

Spanish religion mixed with local architecture has yielded a network of churches unlike any other.

This historic national park is covered in the stunning ruins of red rock pueblos.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This ancient theater was once the home of fierce gladiatorial battles.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

A grand imperial capital left to fall into magnificent ruin.

An abstract monument to a symphonic composer.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

The oldest teak bridge in the world is made from the remains of a royal palace.

This Australian beach is composed of tiny shells.

Myanmar's Mount Olympus atop a 2,500-foot volcanic plug.

A Buddha-filled cave that is named after a giant monster spider.