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

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

Cryptid lake monster honored with its own monument.

Scary metal statues adorn some of the signature buildings of Burlington, Vermont.

A Memphis park where you can walk the whole Mississippi River in one go.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

A modernist landscape of water and sci-fi concrete.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Turning night into day in Victorian-era Austin to thwart a serial killer.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

This eagle-topped spire remembers the military commander who snatched up California for the United States.

The oldest U.S. Government building in California, and it's State Historic Landmark #1.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

A priceless collection of the Nation's cryptologic history.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.