A modernist landscape of water and sci-fi concrete.

The busy transport hub is home to the tallest airport slide in the world.

Europe's largest dinosaur museum was founded by a passionate autodidact.

The famous aviator's final resting place is a study in natural beauty.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A secluded, little-known temple hidden amid the dense jungle.

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

Sofia's legislative center is continuously reinventing itself.

A vast Communist-era exhibition space in the Bulgarian capital.

Temporary Burning Man sculpture made of two 18-wheelers.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

These cascading falls resonate throughout the Bulgarian forest.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

This historic black and white monastery is one of Bulgaria's architectural jewels.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

A massive cave once a secret military base is now home to thousands of bats.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

An homage to the medieval rulers of Bulgaria.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.