The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

This elaborate towering structure was once famed for its revolutionary height.

These boots are made for selfies.

The summer home of the largest colony of bats in the world.

Texas's oldest bakery serves authentic German pastries, including legendary strudel.

The pit stop from "The Texas Chainsaw Massacre" now serves beef and pork barbecue, not people.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

A popular swimming hole that hides one of America's most deadly diving spots.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A modernist landscape of water and sci-fi concrete.

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

A small "palace" and museum made of, and devoted entirely, to salt.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

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

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

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Some islands... they come, they go, especially on Lake Travis.

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

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

This downtown Dallas art installation is always on the lookout.

A symbol of Texas pride.

Ghost town with a beer-drinking goat for mayor.

An abandoned quicksilver mining town surrounded by the Big Bend parks.