Come for the bread-themed puppet show, stay for the buffet.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

If astronomy had a ghost, it would look like this observatory.

This Old Testament garden features 100 plants from biblical times.

These disused steel furnaces are now haunting ruins that may one day be a national park.

One-layer pyramid in Indiana.

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

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

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

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

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

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

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

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The world's longest known cave system.

This natural spring not only claims to heal the wounded but it has also been willed to God.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.