This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

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

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

An emerald-green grotto just a short trip from Austin.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.