How many states are there in the U.S.?

Which U.S. president is featured on the $1 bill?

Which city is nicknamed “The Big Apple”?

What sport is considered the national pastime of the U.S.?

What holiday is celebrated in the U.S. on July 4th?

What’s the tallest building in the U.S. today?

What’s the name of the monument with four presidents’ faces carved into a mountain?

What’s the most populated state in the U.S.?

What’s the longest river in the United States?