One thousand trees were planted in Norway to be used to print books a century from now.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

World's strongest whirlpool.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Enormous lake at the bottom of a unique cave system.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

The remains of a deserted 1800s farming community can be found in Little River State Park.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

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

An unrealized Taoist palace left abandoned in a Houston suburb.

A park filled with vibrant mosaics created by more than 300 folk artists.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

Fantastic collection celebrating the final send-off.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

In the early 1800s, surgery was also a show.

This retro underwater observation tower would make the perfect lair for a sea-loving villain.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This public library and its impressive collection of academic books have not changed since the 17th century.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.