A tree grown from astronaut seeds which were exposed to cosmic rays.

The ruins of the castle that chemicals built.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

Only known mainland rookery of the threatened Stellar sea lion.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The rocks in this arid basin leave trails of movement behind them.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

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

An extensive collection of ancient Egyptian artifacts and mummies.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Towering basalt columns, a creation of fire and ice.

Home to the "Circus" trees created by Axel Erlandson.

Eons old volcanic activity created one of the most stunning rock formations in the United States.