The Mercer Museum is a six-story reinforced concrete castle designed by Henry Mercer and completed in 1916. Today, it is one of Bucks County's premier cultural attractions and a Smithsonian affiliate. The museum complex features local and national traveling exhibits, as well as a core museum collection of over 50,000 pre-Industrial tools. This permanent collection offers visitors a unique window into pre-Industrial America through sixty different crafts and trades, and is one of the world's most comprehensive portraits of pre-Industrial American material culture.