Welcome to Hogwarts
The school has numerous charms and spells on and around it that make it impossible for any Muggle to locate it — they can't see the school, only ruins and several warnings of danger. However young wizards can see the spiraling towers of the great school rise up like white plumes against the sky.
The castle has extensive grounds with sloping lawns, flowerbeds and vegetable patches, a loch called the Black Lake, a large dense forest known as the Forbidden Forest, a number of greenhouses and other outbuildings, and a full-size Quidditch pitch. There is also an owlery, which houses all of the owls owned by the school and those owned by students.
Inside are numerous rooms and halls which are connected by a series of staircases and hallways that move around as if they had a mind of their own. On the walls paintings wave and smile at you, while ghosts float through the air on the mad headless hunt.