This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

In a time before lifeguards, this house was a sanctuary for the shipwrecked.

A local road runs around a memorial to a teenager who died in 1860.

This granite monument at the site of an ill-conceived tourist attraction is built from the same stone as the Mormon Temple.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Charlie Smith was almost certainly not 137 years old when he died, but why let that get in the way of a great story?

A view-altering observatory at the University of Texas.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Two small markers remember the Alamo's feline protectors.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

An antique horse-drawn hearse provided French luxury for the dead in this Texan town.

This big empty pig is a nostalgic throwback to mid-20th-century Texas barbecue.

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

A small island hides in plain sight on Austin's Lady Bird Lake.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

A tribute to the "toughest woman on the Texas frontier," who survived a famous battle and five husbands.

Two flush headstones mark the only known graves to be embedded in an airport runway.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

The site of a gold-digging conquistador's bloody landing in the Americas.

The only known working replica of the world's first self-propelled vehicle.

A luxuriant botanical garden below sea level.