Housed in a historic 1840 home, this museum provides a window into the lives of everyday, 18th- and 19th-century Bulgarians.

This fifth-century church is one of the oldest Christian sites in the Balkans.

Construction of this bridge was once described as an "act of violence" against a neighboring country.

The famous springs of this small town still flow outside this historic building.

This 400-year-old tree is actually an immigrant from North America.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

The Bulgarian royal family exclusively used this ornate, now-abandoned train station.

While it would not look out of place among Serbian spomeniks, this massive Bulgarian monument commemorates one of their defeats.

A crumbling monument to a now locally-extinct sport in Bulgaria's oldest ski resort.

A dragon-shaped fountain that is said to dispense healing water—unless you're evil.

After immigrating to Paris in the 1970s, two brothers from Laos built a grocery store empire.

This oddly shaped boulder in Paris is rumored to be cursed.

One of the best-preserved medieval streets in Europe.

An exquisite Baroque church in Vienna's old town.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Now a ruin, this grand resort was coveted by a communist autocrat and an eccentric Japanese golfer.

The celebrated eyesore created by starry-eyed sweethearts.

From Carthage's Hannibal to riders of the Tour de France, many have crossed this scenic route through the Alps.

The world's largest boar is a huge steel titan found at a French rest stop.

This small, ingenious cannon once helped regulate Parisian life.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This emotive sculpture was originally created for the 1878 World's Fair.

The video game-themed street art first popped up in the French city.

The Argonaute submarine was the French navy's pride and joy in the 1950's.