Nestled into the action-packed Union Square, Barnes & Nobles provides a nice spot to unwind. Don’t be too keen to relax there, though. Celebrities are constantly there with book signings and more. You might just spot Aziz Ansari or Jimmy Fallon while scanning the aisles. Like the Apple Store SoHo, this is no normal Barnes & Noble. With events happening daily, the big time names come in and out of there regularly.