This Mississippi seminary was the first in America to train Black Catholic priests.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

A sarcastic monument threatens to curse any "idiot" who dares remove it.

A giant poultry statue immortalizes one of Alaska's more humorous town names.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.