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

This knick-knack-covered house (complete with a matching van) is a charming oddity in the middle of a modest downtown neighborhood.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

The iconic remains of the original Academic Hall that burned down in 1892.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

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

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This unique zoo is the only place in the world where you can see all 15 species of crane.

A large circus museum with summer performances.

Three bronze deer sculptures relax along the Scioto Mile.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

When flour explodes, it's not a pretty sight.

A chessmaster's dream destination.

Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

The world's longest known cave system.

This cave holds a surprisingly colorful variety of geological oddities.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.