This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

The final resting place of one of the United States's greatest poets.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Eccentric sculptures made from repurposed materials peppers this former farm.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Home to a forest of whimsical pygmy Coast live oak.

A massive volcanic plug is now a protected area that hosts a number of bird species.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

An exotic wildlife habitat right off The Strip.

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

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

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

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

This elaborate towering structure was once famed for its revolutionary height.

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

The oldest surviving botanic garden in the United States.