At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

A multiversal transit station located right below a highway interchange.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

A unique attraction and museum dedicated to exploring iconic roadside structures.

An experimental, automotive replica of Stonehenge.

A bizarre house filled with an astounding array of collections.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A Turkish ghost town abandoned in a population exchange with Greece.

The site of the last royal wedding in Korea.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Tracking the 1,500-year history of Korea's star cabbage.

One man's lifetime collection of tiny objects of wisdom gathered from around the world, on display for public enjoyment.

The burial ground of two kings and a queen is now a calm city park in the middle of bustling Seoul.

The toilet-shaped house of South Korea's sanitation pioneer is now a museum to the john.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

Buy your fish and have it cooked to order in this bustling, eight-floor seafood market.

Some of the freshest vegetables in Seoul are grown in a subway station.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

Plenty of old carney magic still haunts this photogenic amusement park.

Holding the most bodies of any cemetery in the United States.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

The "Skinny House" is made from scrap, salvage, and a neighbor’s kindness.