The Pan American Union is the home of the world's oldest international association, founded in 1890 to foster cultural and commercial ties among the Western Hemisphere republics. It serves as a focal point of Washington's diplomatic and cultural…

Founded in 1869 by Washington philanthropist William Wilson Corcoran, the Corcoran Gallery of Art was originally located at the corner of 17th Street and Pennsylvania Avenue. Rapid growth forced the gallery to relocate, and at its opening in 1897,…

The American Red Cross was founded by Clara Barton in 1881 and chartered by Congress in 1900. The building was built as a memorial to the women of the Civil War thanks to U.S. and private funds. It exemplifies the McMillan Plan's emphasis on…