A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Pop culture has helped to keep this iconic British building from being destroyed.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The television series' iconic giant foot was borrowed from this classical painting.

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

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

The largest of London's subterranean rivers and once a mad, bad center of London life.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

A tongue-in-cheek arcade where the games are based on everyday life.

Traveling collection of amazing automata.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A castle built by an eccentric medieval enthusiast in rural Ohio.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

This feline raises a friendly paw at drivers barreling toward the freeway.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Rippling sand dunes frozen in the Arizona rock.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.