The Martin Luther King, Jr. Memorial in Washington, D.C., United States
The memorial only opened in late 2011 and honors the civil rights activist.
He is the first African American honored with a memorial on or near the National Mall.
This quote is from his famous "I Have a Dream" speech given at the Lincoln Memorial on 28 August 1963.
If you have a chance, visit it at night: it was much more powerful and moving.
For more information on the MLK Jr. Memorial.