NATURAL BRIDGE, Va. (AP) Must see. Spectacular limestone formation, good condition. Age: about 500 million years. Newer addition may need TLC. Asking $32.5 million. The owners of Natural Bridge are putting the 215-foot-high landmark on the market, along with 1,600 acres that includes a hotel, gift shop, wax museum, caverns, hiking area and rock formation. The arched 90-foot-wide span is a national and state historic landmark and is marketed as one of the world?s natural wonders, though it doesn?t make current lists. The Rockbridge County site draws about 200,000 visitors a year, according to the Roanoke Times. The property is...