This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

An old Danish political institution where members of government can grab a drink off the record.

The only surviving piece of Copenhagen's 16th-century defensive wall.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

The world's first combination ski slope and power plant.

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

This ordinary street was made infamous by a legendary visit from the devil.

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

This ultra-modern wooden boardwalk turns the ocean into a swimming pool.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

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

Local legend says the remains of Father Christmas lie within the medieval grounds.

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

This quarry filled with 65 million-year-old limestone is now home to a nature reserve.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

New York City's only radical feminist independent bookstore.

This small, hidden cove is home to abandoned boats.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.