The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A pair of giant stone heads represent the ancient Roman saints beheaded here.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

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.

Cold war icon and onetime "hole" in the iron curtain.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

Reminders of the Battle of Berlin still scar the railway.

The most visited, and possibly most controversial, museum in Germany.

Glasgow's own "tipsy" temperance monument.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

The ornate structure is part of a building boasting more marble than the Vatican.

A brother statue swap has adorned this building's facade for centuries.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

The world's oldest surviving music hall was also once a freakshow.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

The largest terracotta fountain in the world, built to commemorate Britain’s Victorian achievements.

The former home of the world-famous Templeton Carpet Factory.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

This Georgian mansion blends historical significance with an impressive art collection within picturesque surroundings.

Home to one of the most popular teams in Scottish football history.

This vessel is the final ocean-going paddle steamer in the world.