Population: 1.

A devilishly named gorge that was a sign of salvation for many pioneers.

Native Americans built this circle of stones, which was used to predict astronomical events.

The first declared National Monument in the United States.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

An unknown number of cholera victims are buried in two nondescript graves.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

This rock formation above the Wabash River is part of an ancient coral reef.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Magical-looking cottages that inspired one of the most famous animated films ever.

The quiet canyon has a tumultuous history involving a doomsday cult.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

This rare tortoise skeleton has been hanging around the downtown Los Angeles museum for over a century.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

A Los Angeles cemetery that was once at the center of a Supreme Court dispute.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.