A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A concrete plant shaped like four giant soldiers commemorates one of the most decisive battles of the Napoleonic Wars.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

Flamboyant architecture from the turn of 20th century.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Monasteries on rock pillars, once accessible only by frayed ropes.

Macabre astrological automaton clock dating to the late 1400s.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.