Washington Monument
The Washington Monument is an iconic obelisk located on the National Mall in Washington, D.C. It was built to honor the first President of the United States, George Washington. Standing at over 555 feet tall, it is the world's tallest stone structure and the tallest obelisk. The monument was completed in 1884 and is made of white marble, granite, and sandstone. Visitors can take an elevator to the top for panoramic views of the city.