The world is an amazing place--it's the best start for shaping a new one of your own.
For a glimpse into my own worldbuilding, I've sorted my fictional locations according to the book in which they appear. If you want more help with worldbuilding, the website Mythcreants has some wonderful articles. Pinterest is another great resource where you can assemble images to form a composite picture of your world. Boards for all of my fiction are there, with details of costumes, architecture, geography, and more.