Behind a row of ordinary D.C. houses hides a labyrinth of interconnected art galleries filled with unusual treasures and outsider art.

A man throwing a giant severed hand towers over Antwerp’s main square.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

An elegant German-style resort overlooking the Potomoc River.

Small indie movie theater that shows documentaries and unique films and has a cocktail bar with great drinks.

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

Hundreds of hidden passageways weave through the old quarters of Lyon.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

An unusual, funny and fantastic open air museum.

Founded by Cliff Barackman of 'Finding Bigfoot' fame, this museum is dedicated to the study of North America's unacknowledged hairy woodland hominids.

A monument dedicated to three unlikely visitors to North America.

This forgotten Frank Lloyd Wright house is an architectural marvel at the end of a sleepy residential street.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

The blinking light atop the iconic landmark has been sending secret messages for decades.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

This methodist cemetery is slowly receding into the wilderness along a Maryland highway.

The original shop where the iconic Belgian praline was invented.

Northern Virginia’s iconic Vietnamese shopping center.

This installation turns abstract economics into a stark, public spectacle.