Every tour ends with a pint in the rooftop Gravity Bar, and you can buy add-ons, such as getting a selfie printed on your beer’s head, and learning how to pour the perfect pint yourself.

Every tour concludes with a pint at the rooftop Gravity Bar, where you can even get a selfie printed on your beer's head or learn how to pour the perfect pint yourself. If you have some extra time ...