A monument marks the location of the first successful steamboat demonstration.

This general store is more than a century old and home to various oddities and antiques.

A giant time capsule not scheduled to be cored until 2040.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

This abandoned train tunnel has been the subject of countless ghost stories for years.

This university transit system is a 1970's vision of the future.

Nothing says indulgence like a 1,500-pound chocolate castle.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

There aren't too many operational funiculars around, but Pittsburgh has two!

A beautiful hidden gem in central West Virginia.

Two gems of Beaux Arts architecture that have been sitting vacant for years.

The brainchild of Eleanor Roosevelt, her "Little Village" was a collectivist dream.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

A miniature golf course crafted inside the world's largest simulated cave.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.