Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This small stone building, the final work of a renowned artist, offers a peaceful environment with radiant, colorful glass windows .

A view-altering observatory at the University of Texas.

Free public park and gardens filled with peacocks and peahens.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

A likeness of Da Vinci's mysterious painting smiles at passersby from the side of a barn.

The largest spring in Northwest Arkansas is also home to a sprawling botanical gardens and a historically significant bluff.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

The remains of an early 1900s dude ranch that operated until the 1970s.

A unique gallery chronicles the losers of American presidential history.

A college in rural Kansas founded to prepare the country for an impending World War III.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

A home designed to be on the cutting edge of comfortable, low-cost living.

This former mining town was named the most toxic town in America.

When he found his hometown was no more, Lowell Davis decided to recreate a "new" ghost town from scratch.

A mysterious light of unknown origin on the backroads of Missouri.

This statue is an ode to an iconic roadside advertisement popularized during the 1970s.

The magic's in the hole!