Years of archaeology, just chillin' by the water cooler.

People escaping slavery passed through the oldest house in Lombard, Illinois on their northbound journey to freedom.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Two small markers remember the Alamo's feline protectors.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

Dramatic river bend surrounds a natural red-rocked pedestal.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

These pretty kitties killed and ate as many as 135 railway workers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Conflicting markers on its floor tell a tale of two city centers in San Antonio.

Amazingly detailed marble cinerary urns that once held the cremains of Roman elite.

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

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

These boots are made for selfies.

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

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

A 131-year-old wunderkammer of Texas history.

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