caption: This Sept. 1997 photo shows the Aqua Wing Arena, ahead of the 1998 Winter Olympics in Nagano, central Japan. In Nagano, a city with a population of just 387,000, five large structures were built for the 1998 Winter Games. They remain in use, though many complain that the venues are too big and costly to maintain for the size of the town. (Kyodo News / The Associated Press)