The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Famously misunderstood wonder of the ancient world

World's strongest whirlpool.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The former home of Norway's greatest romantic composer.

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

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

Home to three historic ships from the age of Vikings.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The design of this beautifully crafted building was inspired by Norwegian glaciers.

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

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Old Danish castle immortalized in Shakespeare's Hamlet.

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

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

Copenhagen's celebrated theme park and gardens.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The world's newest astronomical clock is also its most accurate.

The world's most active stratovolcano is almost always erupting.