Nordic giants resurrected from the sea and restored to their former greatness.

This Denmark theme park is part family attraction, part experimental archaeology project.

Old Danish castle immortalized in Shakespeare's Hamlet.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

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

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

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.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

San Francisco's newly reopened hands-on science museum.

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

Southern Italy's spinning top village.

Europe’s oldest natural human mummy.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

A sulfuric hellscape in southern Italy.

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