This apartment is a true time capsule of local life in Bulgaria during the Soviet regime.

Mysterious standing stone formations looks like a petrified forest.

These natural cliffs look like they are a part of an old castle complex.

Outstanding, eerie frescoes and decorations fill this 19th-century monastery.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

Crossing a suspension bridge above a forest is the only way to reach this 12th-century monastery.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

One of the largest mines in Bulgaria is now home to a vast museum more than 100 feet underground.

Said to be the only museum in the world dedicated to the most classic of all blooms, the rose.

The social hall of this former factory is a Communist-era time capsule.

An unfinished complex built for children from around the world sits abandoned on the Black Sea coastline.

Rock carving created 1,300 years ago 75 feet off the ground.

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

Ruins of an early Roman Christian church dating back to the 4th to 5th centuries.

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

A mysterious tunnel hidden in the shadows of a colorful, historic sanctuary.

A mountain pass in Bulgaria's Balkan Mountains was the site of four historic battles.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

This tiny Bulgarian town offers a stunning location in the mountains and a storied history.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

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