Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Faceless white figures loom over the city from the rooftop.

A Roman-inspired temple once controlled half of San Francisco's waters.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Every president in history is immortalized in bronze in downtown Rapid City.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

An extensive collection of ancient Egyptian artifacts and mummies.

Historical trolley restoration and operation at History San Jose, Kelly Park.

A crumbling Beaux Arts monument to the Bay Area's age of rail.