When Harry Potter first discovers that he is a wizard, he starts to learn that nothing in the Muggle world is truly what it seems - and that there is a thriving wizarding world right underneath the Muggle's noses. Nowhere is this more apparent than in Diagon Alley, a cobbled street right in the center of London, where witches and wizards can get everything they need; from school supplies to robes, to books and jokes, to a lovely meal on a sidewalk patio.