then the relationship between mart martin luther king jr. and his mentors, heys and thurmon. and later a tour of the national civil rights museum in memphis, tennessee. >>> each week american artifacts takes viewers into archives, museums and historic sites around the country. the smithsonian national museum of african-american history and culture will open a new building on the national mall in 2015. american history tv spoke with loni bunch the museum's founding director about the new facility. we travel with mr. bunch to the storage site in the washington, d.c., suburb where he shows us artifacts on display in the new building. >> right now we are the nas sum museum of history. this is where my staff will be until the museum opens 2015. six years ago i started waite staff of two, no place to know whether the museum would be, no sense of what the building would look like. today we have a wonderful architect who has created this wonderful model that i'm standing next to. this is the model that gives a sense of what the building will look like when it's erected next to the wa