Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

This historic mansion was built as a symbol of love between a husband and wife.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

Legend says train robbers stashed their gold within the depths of this unusual cave.

The fading, forgotten remains of a once bright and booming factory.

Miniature art that tells an enormous story.

A sculpture that resurrected the only tree standing following the devastating 2011 tsunami.

Stone slabs along the coast warn of Japan's tsunami-ravaged past, often marking the highest point of a wave's reach.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

Faceless white figures loom over the city from the rooftop.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

This downtown Dallas art installation is always on the lookout.

A grove of colossal man-made flowers built to collect the sun's rays.

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

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

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

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

This failed condo development was reborn as a street art hub.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

It was once the base for a series of domestic terror attacks.