Simplify the following text for a Grade 7 native English-speaking person.
Original: The Washington Monument is an obelisk near the west end of the National Mall in Washington , D.C. , built to commemorate the first U.S. president , General George Washington .
Simplified: The Washington Monument is a large , tall , white obelisk near the west part of the National Mall in Washington , D.C. . It was built to remember George Washington , who was the first President of the United States .