The remains of the observatory of the Danish astronomer who first measured the speed of light.

An artist has turned what most people would consider a bathroom nightmare into a work of political art.

Six beautiful wooden giants are hidden around Copenhagen.

With a bundle of matches in one hand and a mobile phone in the other, this sculpture is a modern take on Hans Christian Andersen's poignant fairy tale.

A spiralling hourglass-shaped tower rises from the forests in Denmark.

This distinctive bug-like bridge is made of recycled horseshoes.

A small artistic "graveyard" where clichéd expressions have been buried.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

This unique architectural wonder is home to luxury apartments.

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

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

These hilariously laughing bronze figures lampoon empty promises while encouraging civic engagement.

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

This enchanting spring, steeped in local lore and a touch of royal history, was said to be the place where newborns were collected, rather than being delivered by storks.

Located in the middle of public park, this cave built in the early 19th century houses an ancient stone sarcophagus.

One of the last remaining railway viaducts equipped with a transporter ferry.

The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

Legend claims these are the heads of executed criminals, magically turned to stone.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

This ancient oak tree plays matchmaker for singles willing to branch out from the usual dating scene.

A mammoth WWII anti-air defense tower has been repurposed as a hotel with a rooftop garden.

Hidden in plain sight on a gable between two towers on the roof of shipping firm F. Laeisz' headquarter in Hamburg sits an unexpected bronze sculpture.