The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A medieval church built up to defend its village.

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

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

Romania's only crater lake with water as pure as if distilled.

This massive underground salt mine now holds a sci-fi theme park in its depths.

A series of playful yellow penguins share a serious message about the environment.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

An underground city of salt.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

This 19th century cyclorama acts like an analogue time machine to a different era.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Double spiral staircases are not unheard of, but they are very rare.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Op-art architecture designed for happiness.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

The final resting place for the remains of 143 Habsburg royalty.