An avenue is like a special path that is usually in a big outdoor area with lots of plants and trees. It's like a long and narrow hallway but instead of walls, there are tall trees and bushes on both sides. Sometimes, people plant flowers, put benches, or build statues along the avenue to make it look more pretty. You can walk or drive on the avenue to enjoy the peaceful surroundings and appreciate the nature. Think of it like a secret garden passageway that you can explore and enjoy being outside in.