The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This remote island, home to the easternmost point in Denmark, once hosted pirates and a military fortress.

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

Northern Europe’s largest castle ruins sit precariously on an island cliffside.

Once a granite mine, this beautiful lake is the perfect place to cliff jump and zipline in Denmark

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Micro-nation based around a nine-story high illegally built tower.

This collection of Dwarf beech trees were once believed to be enchanted trolls in disguise.

At this bohemian accommodation, guests who dream of joining the circus can spend the night in themed wagons.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

Hamburgers are intensely proud of their tunnel beneath the river.

Model Trains and Much More in Hamburg.

Search the street for hidden cats, all up to different kinds of mischief.

This colossal hiking boot, once built for a scout jamboree, serves as an observation tower and barbecue area.