Leadenhall Market
This covered Victorian market is one of the oldest markets in London, selling meat and fish as far back as far as the 14th century. The current green and red roof, however, was constructed in 1881 and made Leadenhall Market a popular attraction in London.
The marketplace was featured a few times in the Harry Potter series — it was the film location for some of the original exterior shots of Diagon Alley, the cobblestoned shopping hub of the wizarding world where Hogwarts students can stock up on school supplies like spell books and wands.