These murals stand as reminders to the troubled history of this Northern Ireland city.

A museum dedicated to the tragedy of Bloody Sunday.

Inside this museum resides a boot fit for a giant.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

Being surrounded by typical buildings just makes this uniquely modernist house stand out even more.

Beautiful scenery provides the backdrop for an abandoned coastguard facility.

This massive monument has been telling the time for 150 years—at a slight angle.

These engineering masterpieces are a dominant feature of the Belfast skyline.

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

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

A bronze sculpture on a bridge, of the shoes of 29 famous Malmöites.

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

Denmark’s oldest bakery is home to the 'Wednesday Snail,' one of the best cinnamon rolls on the planet.

Copenhagen's celebrated theme park and gardens.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

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

This red light district plaza memorializes the Fab Four and their historic connection to the area.

Model Trains and Much More in Hamburg.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.