Some places that we can look at to find the magic Geocities used to give is Neocities. Neocities is a web hosting service, that believes in fun, and creativity. They are attempting to bring back the fun in exploring the website, and you can, through looking at the browsing section. Through that, you'll see several diffent styles, and looks, that a person THOUGHTFULLY put there.
Again, they've been archiving the internet for quite a while, and they even have a collection of Geocities webpages that you can look at! Or maybe even have a look at the long forgotten MySpace.
Just have fun!