21) What is the name of the largest mountain range in the contiguous United States located in California?
22) What is the name of the famous art deco building located in New York City?
23) Which of these presidential memorials is located near Potomac River in Washington ?
24) What is the name of the famous castle-like building that serves as a museum and library located in Pennsylvania?
25) Which S Landmark is popularly known as 'The Bean'?