A unique home built by Andrew Jackson Caldwell that also served as a military hospital.

The first KFC is on the National Register of Historic Places.

This huge clock made of flowers and simple machinery was once used a political weapon.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

An enormous natural sandstone bridge in Kentucky.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

The world's longest known cave system.

The youngest volcano in Central America.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

This iconic pavilion in Barquisimeto has a roof made from 16 “petals” that open and close depending on the weather.

One of the most iconic sculptures in Caracas looks like a large orange ball suspended in the air.

This former shopping center now acts as the eccentric lair of the Venezuelan secret police and their shadow prison.