Discovery Channel has several shows that carry the "Monster" title. These shows concentrate on doing something extreme that aren't normally seen every day. On "Monster House" they take a normal house and turn it in to something extreme. I've seen theme turn a couple's house into a Vegas-style casino/hotel, a house into a retro sci-fi house (complete w/crashed flying saucer,) and Medival house, a Icelandic/Nordic Viking house and many, many other interesting things. Each show features a new set of "builders". These are 5 local contractors who will have fie days to complete the transformation into a "monster" house. They're just normal everyday contractors. I'm not sure how you apply to be a contractor, 'cause they've had some really bad ones in the past. The bottom line is it's pretty fascinating what these folks will do with a house in just 5 days. Make sure to check out their best of gallery for pictures of some of the transformations.
On American Chopper, the show follows the Teutul family of Orange County Choppers (of Orange County, New York,) I think part of the reason I really enjoy the show is it reminds me at times of working for my family when I was younger. It's also pretty amazing how these guys fabricate these bikes. My favorites bikes were probably the NY Firefighters bike, Jet bike and the Snap-on Tool bike. Make sure to check out the photo gallery for pictures of all the bikes they've built on the show.
Discovery Channel re-runs these shows a lot on the weekends, so if you've never seen either show and are looking for something to watch, I recommend watching an episode or two.