The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

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

Four-story concrete hotel never opened to customers.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

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

The ghostly remains of what was once the world's richest copper mine.

This super-sized statue is the only public memorial to the deal that ended America's neutrality during World War II.

Stay in a room with a view... of the bottom of the ocean.

"Polynesia on the Plains."