This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

A county library in rural Ohio houses one of the finest mineral collections in the world.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

Only 68 people per day are allowed to visit this New Zealand bird-watcher’s paradise.

The world's tallest bridge is also possibly the most elegant.

Rock-cut cave complex filled with ancient Buddhist artwork.

Just outside of Nairobi lies a large estate surrounded by endangered Rothschild giraffes, who have been fed from the window by Mick Jagger and Walter Cronkite.

A subterranean house of worship carved right out of the bedrock.

A small sculpture garden that provides a microcosmic representation of California.

Decades before the scandal, this staircase on the river was a literal "water gate."

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

This museum boasts the ninth-largest collection of insects in North America.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

Eclectic collection of rare and beautiful stones in a historic home.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

The world's first hotel built in an abandoned water-filled quarry.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.