This massive airship factory is so large that it has its own indoor weather.

When a guy acquired a free church, he hauled it away piece-by-piece to make it the tasting hall at his vineyard.

On the upper deck of this church-owned parking garage stand eight pillars topped with different Catholic saints.

This retired stagecoach tavern is the oldest building in Cleveland.

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

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

One of the few authentic Japanese gardens in the state of Indiana and perhaps the most peaceful place in the city of Mishawaka.

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

This turn of the century jail once held Charles Manson.

The largest historic preservation organization in the United States.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

This unassuming home was once “grand central station” for the Underground Railroad.

This mysterious hill seems to pull objects uphill.

The first spinning jail built in the United States is the only one that still turns.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

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

The longest navigable underground river in the United States is home to countless blind and albino animals.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Century-old shop, specializing in Occult products.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

The oldest surviving presidential residence in the United States.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.