This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

One of Ireland's most infamous prisons for rebels including men, women and children.

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

A museum marks and documents the site of the Titanic's launch.

Northern Ireland's Brobdingnagian stepping stones.

Swedish skyscraper with a 90° twist.

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

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

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.

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

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

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

Four alabaster giants contemplate the tides on the shore of Denmark.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

A moving memorial to the fallen and missing from WWI trenches.