A Tale of Two Cities, Both Called London

This is the best explanation I’ve ever seen about why there is a large metropolitan area called London (that includes Westminster) and a one-square mile area called the City of London. It explains why there are two mayors of London (Boris Johnson with the Trump-like hair is the mayor of greater London) and two police departments (the Metropolitan Police of greater London and the City of London police). Originally found at Smithsonian Magazine, but it’s actually a YouTube channel with many short documentaries.