The forgotten mummies of Dakhla oasis.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

This elaborate towering structure was once famed for its revolutionary height.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Dr Barnes' $25 billion private collection of art and arboretum.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

World's only nuclear reactor operated by liberal arts undergraduates.

One of the oldest continually operating drinking establishments west of the Mississippi.

The sculptural remains of the last home of a legendary Dada artist.

An art collective teaching the more fiery, metal-y art forms.

Hidden beneath the streets of London is a secret subway that only carried mail.

A trailblazing sovereign nation tucked in the American state of Wisconsin.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

A historic observatory precariously perched at the "Top of Europe."

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

A surreal, Gaudi-inspired play space near an Anaheim community center.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

Even King Tut was intrigued by the glass of the Great Sand Sea.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.