What to know about the queen’s lying in state in Westminster

FILE - The gun carriage bearing the coffin of King George V, after leaving Westminster Hall in London on January 28, 1936. Hundreds of thousands of people are expected to flock to London’s medieval Westminster Hall from Wednesday, Sept. 14, 2022, to pay their respects to Queen Elizabeth II, whose coffin will lie in state for four days until her funeral on Monday. (AP Photo/Len Puttnam, File)