Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A history of the U.S. military, with a focus on Pennsylvania's contributions.

The fifth-longest natural arch in the world, and the longest outside China.

One part antique store, one part curiosities hodge-podge.

This convenience store-turned-brewpub serves up inventive Indian cuisine and a wide selection of beers.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

The only nuclear weapon assembly and disassembly plant in the U.S.

The Grand Canyon of Texas.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.