Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

A natural wonder in south Denmark.

Micro-nation based around a nine-story high illegally built tower.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

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

20-foot tall lamp mumbles Swedish to celebrate the holidays.

This Scandinavian island is the site of the first modern observatory.

Swedish skyscraper with a 90° twist.

Danish observation tower designed to look like a giant beer bottle.

This sublime architectural marvel is a rare example of an expressionist church.

Hans Christian Andersen for the postmodern world.

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

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

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

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

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

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

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

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

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Site of the first radio and telephone broadcasting companies in Copenhagen.

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