It's on to Adventureland with Sam Gennawey, urban designer and author of the book "Walt and the Promise of Progress City." Ever notice that set of small grey bricks coming from the fort at Pirates of the Caribbean? It's supposed to represent sewage from the fort's 18th century bathrooms. Disgust and impress your friends with this bit of Disney design. Presented by AAALearn more about your ad choices. Visit megaphone.fm/adchoices