The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

Giant disc-shaped gate took 20 men to close off this city in Madagascar.

Fabulous formations, weird and wonderful wildlife.

Check the time in 145 countries at once with this East German relic.

A small hippo-shaped fountain in Berlin, Germany.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

The largest wine cellar in the world is a 150-mile network of underground caves near the capital of Moldova.

A vivid and terrifying mural blends pop-culture-style depictions of Hell with traditional Orthodox imagery.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This once-derelict building is now one of the most beautiful bookstores in the world.

Historic beer hall in Bucharest with magnificent stained glass and a lively folk band.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This Transylvanian church has changed its denomination four times.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A distinctive building that incorporates a mythical beast into its architecture.

Macbeth's infamous "Great Birnam Wood."