Its buzzing collection honors vibrator history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

A winding path built in secret on the edge of the continent.

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

A white oak with property rights.

Over a thousand feet beneath the Detroit streets is a subterranean metropolis few are allowed to enter.

A very big rock just plopped down in the New England woods.

This extinct shield volcano is the lightning rod of the Cascades.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

The only road through the heart of Glacier National Park.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

Granite outcropping that the state's tourism bureau doesn't promote because of its delicate ecosystem.

Raised illegally, Reggie now lives at the Los Angeles Zoo after authorities spent years tracking him down.

Friction between grains of sand cause a curious "singing" sound.

Abandoned rock quarry now a haven for mountain bikers and hikers.

Only intact Ichthyosaur skeleton in the United States.

Where monkeys run wild and the humans are caged.

Siberian husky that delivered a life-saving antitoxin.

Carved, egg-shaped stone with no explanation.

An ancient cemetery with some historic bodies underfoot.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.