Anyone would enjoy visiting Fallingwater, Frank Lloyd Wright's masterpiece of design). But the Children's Tour, for ages 5-8, is a real treat if you have young ones. We did it a few years ago when it was called the Family Tour. It was really geared toward explaining the physics and design considerations of the house to youngsters. You need to book this a week beforehand, according to the Fallingwater Web site, so plan ahead.