Well, if you like the city of Prague like I do (by far my favourite city to visit in Europe), you'll get a kick out of this 18 GigaPixel gigantic panorama photograph (Credit: Jeff Martin) shot from the TV tower. This image is the largest spherical panorama in the world as of Dec. 2009. Follow this link and make sure you're on a fast computer :-).
Yep, throw out your punny megapixel this and that camera. Time to check out Gigapixel. Head over to Xres.com and check out their gigapixel panorama's from around the world. They are absolutely mind blowing. The two images above should give you an idea what we're talking about. The amount of detail is astounishing. If you're really impressed and want to do your own gigapixel images, you can. Gigapansystems.com is trying to democtratize this field by providing a cheap ($279) robotic paning head that would allow you to produce these type images. I ordered mine today :-).