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

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

Natural rock water slides hidden in the remote forests of northern Idaho.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

One of only two remaining Victorian-era greenhouses in New York.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

Plot your trip through the city on the sidewalk.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

Slyly buy a shake in the Parker Meridien lobby.

Unique antiquarian shop specializing in globes, maps, and prints.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

This Mississippi seminary was the first in America to train Black Catholic priests.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

An old soap company building now houses one of Minneapolis’s oldest independent non-profit art galleries.

A small museum dedicated to the whimsical tool that turns sugar cookies into works of art.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

Giant granite rocks standing end-to-end like a train of circus elephants.

Community bookshelf of 25-foot-tall book spines.

A fitting attraction for the corn capital of the world.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A mysterious local has been dressing the child's grave for decades.

Journey up the capitol building's cupola for an amazing view of Topeka.