The Cathedral of Saint Matthew is the principal church of the Roman Catholic Archdiocese of Washington, located in Washington, D.C. It was designed in the Romanesque Revival style and completed in 1913. The cathedral features stunning stained glass windows and intricate mosaics, making it a significant architectural landmark. The cathedral serves as a place of worship and hosts various religious events, including masses and special ceremonies. It is also known for its beautiful interior, which includes a grand altar and a prominent dome. The Cathedral of Saint Matthew is a popular destination for both locals and tourists.