This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

The time thousands of bags of chips washed ashore in the Outer Banks is memorialized in a local museum.

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

America's post-nuclear-attack chambers of Congress.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

No two pieces are exactly the same at Portland's hippo-themed hardware store.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

An overlooked memorial honoring the local Washington residents who died in World War I.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

Back in the day everyone who was anyone played this historic western theater.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

The infamous Boston Mob ran rackets from an office here in the 1970s.

Stolen goods adorn the organ at Old North Church.

This historic Boston building has gone from personal estate to porn theater and back again.