Complex sentence: The majority, 11, of these museums are located on the National Mall, which is the strip of land in Washington, D.C running between the Lincoln Memorial and the United States Capitol, with the Washington Monument providing a division slightly west of the center.
Split into simpler sentences: The majority, 11, of these museums are located on the National Mall. The National Mall is the strip of land in Washington, D.C running between the Lincoln Memorial and the United States Capitol, with the Washington Monument providing a division slightly west of the center.