The Lincoln Memorial is one of the most prominent landmarks in the world, and it was built with the intent of memorializing Abraham Lincoln, the sixteenth president of the United States, who preserved the nation during the Civil War. It is a large building surrounded by marble columns, and inside the building is a giant statue of Lincoln made of marble and stone. The place is considered a permanent symbol of the American dream of freedom, especially after Dr. Martin Luther King delivered his famous "I have a dream" sermon engraved inside on the walls.