A stunning 18th century pharmacy and medieval chemist's collection.

Something's watching you.

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

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

A statue honors the children who fought Nazis in Poland.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

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

Romania's triumphal arch looks out over Bucharest.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

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

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

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

Three hundred years of preserved Spanish colonial history in San Antonio.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

A 131-year-old wunderkammer of Texas history.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Astounding collection of coin-operated games and automata.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Climb inside an iron crystal magnified 165 billion times its normal size.