Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

An ornate private entrance to the Vienna subway built specifically for the emperor.

Fantastic stories on a miniature railroad.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A plaque pays tribute to the artist's longtime London home.

Eighty million natural history specimens call this gargantuan museum home.

This museum inside a museum tells the story of London's timepieces.

Charles Babbage's proto-computer, painstakingly brought to life.

A clock designed to run with perfect accuracy for 10,000 years.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

This one has sailed five times as far as Sir Francis Drake's famous ship.

The commemorative stone column conceals a secret laboratory.

This unassuming building produced some of the world's most famous bells.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

This mysterious and unique painting is filled with symbolism.

This haunting sculpture was created as a statement on the mechanized warfare of the First World War.

A haunting painting meant to capture the calamity of World War I.

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

A museum dedicated to the tragedy of Bloody Sunday.

The modern birthplace of Irish freedom.

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