Sure! Here are ten useful features for distinguishing amusement parks in a photo:

1. Roller coasters: These are often the most iconic feature of amusement parks and can be easily recognized by their twisting, turning tracks and tall drops.

2. Ferris wheels: These towering structures with their large, circular cabins are a common sight at amusement parks.

3. Water rides: These can include log flumes, water slides, and other attractions that involve getting wet.

4. Carousels: These classic amusement park attractions feature brightly painted horses and other animals that go up and down as the ride spins.

5. Games: Look for booths or areas with games like ring toss, basketball, or dart throwing.

6. Food stands: Amusement parks are known for their snacks and treats, so look for areas with stands selling cotton candy, popcorn, and other goodies.

7. Midway: This is the area with all the attractions and rides, usually lined with brightly colored tents and flags.

8. Thrill rides: In addition to roller coasters, amusement parks often have other thrill rides like drop towers, tilt-a-whirls, and spinning rides that can be recognized by their unique shapes and movements.

9. Theming: Some amusement parks are known for their elaborate theming, with areas designed to look like different parts of the world or fictional lands from movies or books.

10. Crowds: Finally, look for areas with large crowds of people, as amusement parks are often packed with visitors enjoying all the rides and attractions.