The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A technicolor place of worship for Elevationists.

A remote horde of architectural treasures fit for Indiana Jones.

A massive underwater sinkhole made famous by Jacques Cousteau.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

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

The longest hedge maze in the world.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Great Britain's only hat-making museum.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

This historic stone bridge has an entire neighborhood clinging to its sides.

This sublime architectural marvel is a rare example of an expressionist church.

A Swiss board game museum housed inside a picture-perfect castle.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Tubing through a cave lit with glowworms is a magical underground experience.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A submerged archeological park still holds the wonders of a Roman Sodom.