The Sixth Floor Museum is so famous because John F. Kennedy, the former president of the United States, was shot and assassinated by a murderer on the sixth floor of the museum in 1963 when he was campaigning in Dallas. On the street next to the museum, there are two large X numbers, marking the location where Kennedy was shot. When you visit, remember to avoid traffic. Visitors to the sixth floor of the museum need to book tickets in advance. They can buy tickets online. Otherwise, all temporary visits are sold out.