At Duff’s, you’ll see a disco ball behind the bar with a fake severed head spinning right beside it. This Williamsburg bar is heavy-metal themed, and additional decor includes an electric chair, a bench shaped like a coffin, a human-sized cage, and exactly one stool featuring an image of Justin Bieber. The space is dark, divey, and drenched in memorabilia from bands like Danzig and Slayer, and it’s a wonderful place to drink something cheap while you listen to Alice Cooper. If you’re a metal fan, you’ll love it here. And if you aren’t a metal fan, you’ll also love it here, as long as the weapons hanging from the ceiling don’t freak you out.