It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

An office built to look like a giant basket.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

Dr Barnes' $25 billion private collection of art and arboretum.

Alexander Hamilton’s creation caused quite a bit of controversy.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

One of the oldest of its kind.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This giant disembodied horse head seems to balance impossibly on its nose.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

Inside Crosswicks Creek Park resides an estate chronicling 200 years of history.

Located in the remote Monitor Valley, this travertine bowl contains a scalding pool of water.

Eat your Big Mac in a DC-3.

At a Bangkok bistro, one pot of beef stew has been cooking non-stop for more than 45 years.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

A curious building honoring past and current members of a historic musical comedy troupe.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

An Irish Memorial commemorating those who perished due to potato blight.

Once America's tallest structure, now a Baltimore landmark.

Connecticut's shot tower is near the end of its life.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.