House on the Rock in Spring Green, Wisconsin

Are you afraid of heights? Then you may want to avoid the Infinity Room at Spring Green, Wisconsin's House on the Rock.

The long, thin room stretches 218 feet long and 156 feet above the valley floor, with over 3,000 windows for walls, providing amazing panoramic views. Considered an architectural wonder, the house was built in 1945 by Alex Jordan as a luxurious retreat.

Perched on a rock, as its name implies, the house has an amazing view of the surrounding nature.

Open to the public since 1960, the house is divided into three sections that can all be toured. The admission for all three sections is $28.50 for adults and $15.50 for children. But, each section can also be visited separately for $12.50.

Staff recommends that visitors spend at least three hours in the house to experience all that it has to offer, such as a carousel it touts as the world's largest, complete with 269 handcrafted animals.