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

Overshadowed by quilts, the artistry of these patterned textiles went underappreciated for too long.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

This might just be the TARDIS of bookstores.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

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

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

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

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Steepest flood safety railway in the entire world.

Memorializing an American tragedy of massive proportions.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

This dramatic rail curve was once the target of a failed Nazi attack.

Behold the rickety wooden glory of the world's oldest operating roller coaster.