This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This historic hotel invented the chocolate brownie.

A hollow cement depiction of time's inexorable effect on the human body.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

An antiquated German apothecary on Chicago's North Side.

A man-made island in scenic San Francisco Bay.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Playable, historic pinball machines fill this Alameda museum.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

Dive bar built out of the remains of a whaling ship.

California's own majestic geyser is powered by a subterranean volcano.

The miraculous hydrant that saved the Mission District in 1906.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A giant donut stands as a popular symbol of Los Angeles iconography.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This turn of the century masterpiece has a mysterious goaty interloper.

Golden Gate Park's historic collection of plants.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This private residence was the template for one of the most beloved television homes of all time.