The Smithsonian National Postal Museum is devoted to the colorful and engaging history of the nation’s mail service and showcases the largest and most comprehensive collection of stamps and philatelic material in the world
The Frederick Douglass National Historic Site preserves the last residence of Frederick Douglass (1818 -1895), one of the most prominent African American leaders of the 19th century
The German-American Heritage Museum is the only national museum to celebrate, display, and commend the achievements of immigrants who came from German-speaking countries and achieved the American dream
