A church is a special building where people who believe in God go to worship and pray. It's like a special place where people go to talk to God and sing songs to show how much they love Him. Churches usually have a big room called a sanctuary where people sit to listen to a person called a pastor or priest talk about God and teach them about the Bible. They also have things like stained glass windows with pictures of Bible stories, and statues of important religious figures like Jesus and saints. It's a place where people can feel peaceful and connected to God.