There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

An unusual college football tradition involves burying pieces of sod from competitors' turf, replete with tiny coffins and headstones.

World's largest magnetic research facility.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

One man's grief over the national tragedy has manifested in a pod of homemade whales on his front lawn.

A local landmark with generations of spraypainted messages, and more being added each day.

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

Large one-man sculpture park in Michigan.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

Enormous lake at the bottom of a unique cave system.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Elvis's own personal tropical hideaway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

World's first "penitentiary," meant to be humane, drove men insane.

A layered tribute to the work of mosaicist Isaiah Zagar.

This elaborate towering structure was once famed for its revolutionary height.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

The oldest lawn bowling club in the United States.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.