The boys really enjoyed the incline railroad in Pittsburgh. So much so they have both made replicas since we've been home. Caleb made a Lego incline car. Caden made a incline train track and train with his Thomas set and a plastic tub lid in his bedroom.
Riding the incline wasn't as bad as I thought it would be. It certainly wasn't my favorite, but I'm glad we took them on it. It is one of the few things they are still talking about and replicating.