This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A remarkably opulent mansion with a tragic history.

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

Named after an outlaw who used the basin as a hideout.

The drama of nature in full effect in this Nevada State Park.

A unique collection of more than 250 rocks and minerals located on a university campus.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

The world's oldest optical museum is an odd collection where the exhibits look at you.

This small university museum houses a priceless collection of scientific instruments.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

The mummies of a fake priest and bandit's wife are among the abundant curiosities at this museum.

Preserving the research tools, unexpected inventions, and odd collections of generations of college professors.

A small museum packed with specimens from important fossil sites and minerals from historical pegmatite quarries.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

An out of this world experience.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

Located in a remote part of a Louisiana wildlife refuge, this tree has been standing for more than 1,200 years.

Renowned restaurant tucked in a cave once occupied by buccaneers.

This cemetery is one of the last remaining traces of a drowned old Western town.

These relics of the city's past now exist as a prominent modern feature.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.