Simeone Foundation Automotive Museum
A nondescript hangar five minutes from the Philadelphia International Airport is home to what's been dubbed the most impressive racing car collection on the planet. Dr. Fred Simeone spent half a century amassing a fleet of more than 75 vehicles that tell the sweeping story of racing history. You can see them in action during regular “demo days,” which happen once a month on Saturdays when staffers fire up a selection of the antique roadsters and take them out for some air.