Which one of these is a good landmark?

Landmarks are useful. They help you find your way around. In a busy shopping center, your parents may say that they will meet at the fountain in the middle. You tell your friends that you will meet at the slide on the park. On vacation, your Mom might say, ‘Ah, I know where we are now.’ Landmarks are usually buildings. But they can be statues, or hills, or even a bridge. They are somewhere that everyone knows. They are often tall, so you can see them easily.