Romania's triumphal arch looks out over Bucharest.

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

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

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

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

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

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

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

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.

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.

This historic tall ship traveled 1.5 million miles around the globe, and once did duty as the mythical pirate ship in Peter Pan.

This 19th-century convent is now a flourishing 21st-century hub for art.

You'll find the little birds tucked within the rocks of this Australian beach.

These engineering masterpieces are a dominant feature of the Belfast skyline.

This massive monument has been telling the time for 150 years—at a slight angle.

A small plaque highlights the damage caused by German air raids during World War II.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

The last Victorian market in Belfast.

A natural swimming hole that was once a ceremonial center for Mayan priests.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.