WASHINGTON (AP) - To mark the 100th anniversary of the Titanic sinking, the National Geographic Museum in Washington is preparing a new exhibit on the history and study of the famous ship.

"Titanic: 100 Year Obsession" will highlight the work of Robert Ballard, who co-led a team that discovered the shipwreck site in 1985, and James Cameron, who made the film "Titanic." Cameron has organized 33 dives to the Titanic site.

The exhibit will examine the ship's development and engineering, as well as its beautiful features. It will include a detailed scale model of the ship, as well as a working model of the engine room and a recreated radio room. Replicas and props from the film will be on display.

The exhibit announced Monday opens March 29 through July 8.