Here's what Cinderella's castle in the Magic Kingdom at Disney World Orlando looks like. You can't see it in this photo but there is a guide wire that runs from atop that tall spire, down to....well I'm not sure where. At the beginning of the fireworks show, a real live women, dressed as Tinkerbell, with a lot of LED lights on her wings, flies down that wire. It is something to see.
Here is what it looks like at night. It does change colors, and has seasonal colors as well.
The Disney imagineers used several different European castles as there inspiration, but the Neuschwanstein Castle in Bavaria was most influential.