Although there are a few planes, boats and buses at St. Louis' Museum of Transportation, the museum is devoted almost entirely to a large selection of locomotives, train cars and automobiles. Most of the huge collection is outside (although there's a roof over some of the train cars that will protect you against inclement weather). A railroad buff would surely love this exhibit, which includes engines powered by coal, steam, diesel fuel and electricity. Passenger cars, freight cars and interurban trains are all represented. An adjacent building houses the automobile collection. We especially loved the Route 66 exhibit. Automobiles, campers, motorcycles and a motor home from the 1960s, when the route enjoyed its heyday, re-create the high point of the American family driving vacation. Backdrops include 1960s-era gas stations, road signs, restaurants and hotels that were known highlights on historic Route 66. Knowledgeable and passionate docents can answer questions about any of the vehicles displayed, and they love to do so. Admission is $6/adult, $4 for seniors and kids.