On Dec. 10, 2010, the GLBT Historical Society opened its GLBT History Museum in the Castro District for previews. Located in a storefront at 4127 18th St. near Castro Street, the 1,600-square-foot (150 m2) space houses two historical galleries with room for public programs, a small museum shop and a reception area. The society has signed a five-year lease for the space; the extensive build-out of the museum, along with a significant discount on the monthly rent, was donated by Walgreen Company, which holds the primary lease and is using about one-quarter of the storefront to expand the operations of its adjacent satellite pharmacy. The institution is believed to be the second full-scale, stand-alone GLBT history museum in the world, following the Schwules Museum in Berlin, which opened in 1985.