The world's largest man-made underground caverns offer unparalleled underwater wonders.

After 97 years of constant vigilance from the dome of the Texas State Capitol, the original Goddess of Liberty retired to a life of climate-controlled leisure.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

This hollowed salt dome is the largest oil storage facility in the world, hoarding 250 million barrels of crude oil.

In Parr Park, thousands of painted rocks line this walking trail.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A quirky collection of old chairs fills a random vacant lot in suburban Texas.

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

Belly up to the bar in Cowtown, don't forget to buy some boots.

A registered historic landmark shrouded in unsettling local legends.

This downtown Dallas art installation is always on the lookout.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

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

Furniture tries to escape an abandoned building in San Francisco.

A winding path built in secret on the edge of the continent.

This painted marvel is San Francisco's 400-foot ode to urban biking.

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

San Francisco’s century-old Christmas Tree.

San Francisco’s condensed garden of incredible plant growth.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

A classic advertising icon immortalized in regal bronze.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.