Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

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

The world's oldest known salt mine.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

An abandoned train station in Munich constructed for the 1972 Olympic games.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

The great Danube river starts here.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

Cold war icon and onetime "hole" in the iron curtain.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

An elevator into the Baltic Sea.

These 18th century gardens tell a rocky story of the son of Odysseus.

The footprint of a frustrated devil in Munich's Cathedral.

This historic stone bridge has an entire neighborhood clinging to its sides.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.