This giant roadside fruit is home to an array of apple-based treats.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This unusual structure may be on its way to becoming a cultural landmark in Toronto.

The secret city built by the Manhattan Project.

Before TV meteorologists, there were weather kiosks. This may be the last one in the United States.

The world's largest version of this iconic puzzle cube is located in Knoxville, Tennessee.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This replica of the Greek structure is in the heart of Nashville.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

An abandoned textile mill that is now home to art and concerts.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A towering Art Deco movie palace made to look like a Mayan temple.

A bizarre house filled with an astounding array of collections.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

This cave holds a surprisingly colorful variety of geological oddities.

This circus town museum recognizes the outstanding clowns of history.

A large circus museum with summer performances.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.