Sofia's legislative center is continuously reinventing itself.

An homage to the medieval rulers of Bulgaria.

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.

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

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

The remarkably well-preserved final resting place of a powerful ancient Thracian king.

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

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

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

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

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

A collection of art from Bulgaria's time as a communist state.

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

A striking symbol of the Bulgarian capital.

UNESCO-protected ancient burial ground.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

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

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

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

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

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