Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

A big museum full of little worlds.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

America's oldest archaeological site or a muddled case of wishful thinking.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

Museum dedicated to awful artwork.

An anonymous art project beneath Longfellow Bridge where hundreds of trophies line the steel support beams.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

This old mill and former police station now present a world-class collection of Orthodox iconography.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

A journey through a curious collection of oddities and wonder.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

A curious cone-shaped structure made of wire and covered with antlers.

In Gloucester, Massachussets, fishermen celebrate a successful year at sea by charging a lubed pole to capture an Italian flag.

The oldest living organism in New York City. Maybe.

The home of a deceased Hungarian artist is now on display for visitors.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.