<human>: I'm going to visit the United States for the first time. Can you recommend some must-see places?
<bot>: 
1. The Grand Canyon is one of the most iconic and breathtaking natural wonders in the world, so it's definitely a must-see!
2. New York City is an exciting city with plenty of sights to see such as the Empire State Building, Times Square, and Central Park.
3. Washington D.C. is another must-see destination that offers visitors incredible monuments like the Washington Monument and the Lincoln Memorial.