If you think Disneyland Paris is just a theme park like everyone else, you probably haven't been there yet!
Because Disneyland Paris is much more than an ordinary amusement park: there is no corner, no matter how out-of-the-way, which there is no concept and no detailed planning for. Everything, but really everything that you can see in the two theme parks, has been placed for a very specific reason. For example, the lettering on the windows on Main Street is not chosen indiscriminately, but has a very specific background; the same applies to the tombstones on Boot Hill and the advertising signs on Hollywood Boulevard - this list could go on and on.
And even if you've been to Disneyland several times, there are certainly still things, to shorten waiting times at attractions that will surprise you. On a guided tour through one of the two parks, you will surely learn some interesting things that were previously completely unknown to you.