Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

An abandoned stretch of highway, deteriorating next to the operational one.

A local prank turned town icon.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

Step inside Lucy, the world's largest "elephant."

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

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A couple turned their front yard into an artistic masterpiece.

An inconspicuous footbridge beloved by San Diego locals.

This historic graveyard was partially paved over to create a streetcar line.

San Diego's most historic and haunted home.

The oldest standing structure in downtown San Diego.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

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

This 220-year-old house is a reminder of New York City's Dutch past.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

An abandoned incline railway site is now a green space with six acres of trails connecting hilltop neighborhoods.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

A collaborative art project that transformed a neighborhood in NYC's Queens.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.