The Forney Museum in Denver is mostly known for having one of the world's few surviving Big Boy locomotives, which ranks among the most terrifyingly huge and powerful land vehicles ever built. But who cares about a 6,200-horsepower steam locomotive when, under the same roof, one can find the actual '79 Porsche 928 driven by Tom Cruise in "Risky Business"? The Forney is packed full of other wonderful machinery, including an Amphicar, a brace of real AC Cobras, a whole bunch of early-20th-century iron, and a GM prototype '70 Cadillac station wagon, but the awe inspired by such close proximity to the Risky Business 928 may short out all the circuits in your brain, rendering you unable to appreciate the other cars. [Forney Museum]