Architecture 360's Main Street Garden Celebration will let attendees experience a time capsule of downtown Dallas architecture. There will be live music and docents giving walking tours and behind-the-scenes access to the most important buildings surrounding the park, including Dallas’ retail beginnings at 1900 Elm, 1950’s “Mad Men” style Statler Hilton and one of Dallas’ earliest City Halls, including the cell where Lee Harvey Oswald was jailed after the Kennedy assassination. Food and drinks will be available for purchase.