A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Egyptian Revival obelisks still rise over the old mine shafts.

As its grandiose name implies, this wooden dome is unsurpassed in size.

"The Most Boring Road in the State."

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

This moving cemetery sphere is a slowly rolling stone.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The world's largest collection of the world's largest objects is in one small Illinois town.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

There are eight natural springs around town, each with a slightly different taste.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

A downtown park built on top of unclaimed graves.

This Chinese-style quartz sundial was saved in its final hour.

Final resting place of a 19th century gold prospector and convicted cannibal.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

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

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.