Fun Fair Hidden Alphabets

We are visiting an amusement fair with a wide variety of games and toys. The first thing we came across was the circus tent. But that is not all. The toy section, slides, swings, darts, pool and most importantly the carousel take place at the fair. But we came here not only to have fun, but also to learn. For example, 26 letters are hidden inside the fair. Those who kept it did their job masterfully. Our task is to find these 26 letters as soon as possible. You have the right to get a total of 4 sections and 3 hints in each section.