Old Danish castle immortalized in Shakespeare's Hamlet.

Just off the city’s central station hides a quaint lamp-lit alley into medieval Elsinore.

The castle used by the Danish Royal Family as a hunting retreat.

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

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

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

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

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

This chimerical bridge/tunnel appears to dead end right into the sea.

A modern, secular take on a traditional Virgin Mary motif.

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

A natural wonder in south Denmark.

Copenhagen's celebrated theme park and gardens.

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

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

Hundreds of signs pointing to the birthplaces of current Helsinki residents form stalactites on the ceiling of the cave-like Kamppi metro station.

A subterranean house of worship carved right out of the bedrock.

An abstract monument to a symphonic composer.

On a small island, a replica of a Finnish village from the Iron Age.

A small island dotted with old, historic Finnish buildings.

This church also serves as a lighthouse complete with a beacon.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.