Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

A celebration of Colombia’s premier contemporary artist.

One of the most controversial statues in Romania is an emperor with no clothes.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

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

Romania's triumphal arch looks out over Bucharest.

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

This snug medieval lane is one of the narrowest streets in the world.

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

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

An ancient burial ground believed to have been used for ritual sacrifice.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

A collection of collections ranging from dentistry to minerals.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

An alien church provides much needed silence in the midst of a Finland shopping center.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

Finally reunited, the three effigies now stand in a museum courtyard.

Outside a Viking museum sits a modern-day runestone made by a Swedish runemaster using traditional methods.

It houses the remains of a 17th-century version of the Titanic.