Man-Made Objects

What is the most beautiful man made object? I would have to say cars, because cars can be cool, they can be smooth, it can be fast. One person's idea for the best man made object is a girl. I know a girl is a man-made object but I don't think you should call them objects, they might get offended. What item I dont possess would I want to have? I would like a car, a cool red corvette.