The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

London's smallest police station is barely the size of a phone booth.

Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

Be on the lookout for the symbolic insect all over the city.

A tiny, hidden alleyway dedicated to the father of meteorology.

Where Agatha Christie mysteriously disappeared in 1926.

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The largest greenhouse in the world is home to over one million types of plants.

Largest lake in Great Britain measured by surface area.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The sign at the garden gate reads: “These Plants Can Kill.”

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This bridge was constructed from the rubble of the infamous Bastille.

One of the oldest amusement rides in existence was a huge disappointment to its creator.

This charming English house was once the home of England's most famous poet.

A modern English garden of eccentric beasts, follies, and oddities.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

A celebration of capitalism in Midtown.

The 28-foot granite map plots the locations of 40 theaters in New York City.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.