After covering almost 1.5 billion acres, the survey's still not finished.

One of the oldest surviving lock houses on the Ohio River.

The Paul Bunyan of the steel industry.

This icon of the Atomic Age now lays dormant.

A T. Rex statue dressed as Mister Rogers honors the children’s-television pioneer.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

How did a former First Lady's tiara wind up being sold to a pawn shop on reality TV?

The 25th President's marble casket can be visited in this classical Ohio tomb.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

An elegant sandstone stairway built by the WPA still connects two neighborhoods in Akron.

But did the famous feminist and abolitionist ever really say those iconic four words?

For decades, this waterfall remained hidden because of an artificial dam.

A grandiose title could not save this mercantile community from obscurity.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

True to his word, George Swanson is buried in his white 1984 Corvette.

Originally a cemetery, this city park remains speckled with a handful of scattered gravestones.

This museum is dedicated to the first coast-to-coast highway.

The only museum in the Western Pennsylvania region that focuses on Asian art and Meissen porcelain.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

Check out the 125-pound chocolate reindeer in the back of this candy shop.

A well-preserved quarry and six of eight continuous burning pot kilns used to make burnt lime and crushed stone are highlights of the self-guided walking tour in Fountain Rock Park.