Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

This small but lovely sinkhole lake is the last remnant of a great prehistoric water basin.

Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

This mechanical clock performs "Romeo and Juliet" in a Shakespeare-themed New Zealand town.

A massive underwater sinkhole made famous by Jacques Cousteau.

An isolated dive site teeming with cnidarians.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A naturally beautiful, seemingly bottomless deep blue spring.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

A spectacular cave and a beguiling lake.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

North Korea's massive art and propaganda factory now has an official gallery space in Beijing.

A bisected journey through evolution's history in the heart of Beijing.

This probably wasn't what Mao had in mind.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

Why walk on this historical site when you can zoom down instead?

The most famous location in China was home to whole dynasties worth of imperial rulers.

Fine dining in the bizarre world of Lewis Carroll.

This 16th-century monastery has been turned into a surrealist architecture compound.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.