This Stockholm light tower can be controlled by anyone with a smartphone.

It houses the remains of a 17th-century version of the Titanic.

Iceland's tribute to its thankless civil servants.

This stunning concert hall has become a symbol of Iceland's national recovery.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

These barriers stand as stark reminders of Northern Ireland's troubled past.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

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

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

A fake Transylvanian castle houses a cathedral of antlers.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Nordic giants resurrected from the sea and restored to their former greatness.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

The last permanent exhibit dedicated to the Soviet leader.

Finland's northernmost zoo is home to the country's only polar bears.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.