An oddity of a bygone era that stills functions today.

The Tudor-style cottage in the middle of the square is not quite what it seems.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

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

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Eighty million natural history specimens call this gargantuan museum home.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

The bones of two medieval royal lions were discovered at the historic fortress.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Former hunting lodge of a duke who was an avid collector of impressionist works.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

This demon atop the Notre-Dame de Paris looks utterly bored.

The site where two doves fell in love.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.