A skeletal collection of former nautical mainstays.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

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

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The first declared National Monument in the United States.

No Gordon Lightfoot song, only a barebones monument to greed.

An architect's childhood fantasy treehouse made real.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The U.S. Fish Commission’s effort to mass produce carp.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

When it opened during the final years of the embargo, all the drinks and cigars were free.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

An old whaling station now serves to give the public a look at the commercial whaling industry, no longer a part of Monterey's economy.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A psychedelic labyrinth on the San Francisco bay.

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

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

It would be a crime to miss it.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.