Ride the subways of yesteryear.

During the holidays, a vintage subway train whisks New Yorkers back in time.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

A surprising museum of 20th-century technology.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.

Where the embers of the Big Bang were first detected.

Destructive children, start your engines.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

A glittering Thai Buddhist temple in suburban Pennsylvania.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

This Old Testament garden features 100 plants from biblical times.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

These disused steel furnaces are now haunting ruins that may one day be a national park.

Priceless space junk on display in front of a local Dairy Queen.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A failed piece of Orientalism has become the proud symbol of a community.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.