If you feel like shopping, go to Union Square. It is filled with famous name-brand stores, such as Apple, Burberry, Cartier, and many more.
If you go in winter, you will also find an open air ice skating rink there. The rink is a lot of fun for skating with your friends. There is normally a crowd and a line, but it is worth the wait. Even if you’re an adult, you should definitely go because it brings out your inner child.