Apartment complexes built into huge repurposed natural gas tanks.

A unique museum that uses visual art and storytelling to reveal the hidden history of the Gullah Geechee and their African ancestors.

This twisty sign depicts the chain's first logo.

This mansion on an island off the coast of Georgia once belonged to a 108-year-old heiress.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

A traditional village rooted in the Joseon Dynasty.

Known as the birthplace of Korean Buddhism, this temple features an ancient, five-story stone pagoda.

The only wooden pagoda remaining in South Korea is part of a Buddhist temple that was established in the year 553.

Numerical symbolism abound at East Asia's oldest observatory.

The triumvirate of postwar Korea—Kim Il-sung, Syngman Rhee, and Lee Ki-poong—once vacationed on this seaside peninsula.

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

The oldest stone house in Paris was built by its most famous alchemist.

An unusual pagoda design in in the northwestern part of Hwaeomsa Temple.

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

A unique museum tells the story of the day-to-day life of World War I soldiers.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

This historic headstone is said to mark the final resting place of a doubly-dead white witch.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.