There's a new age-old question: Are art pop-ups — installations made primarily for Instagram's benefit — cheapening the traditionally high-brow art world experience, or elevating selfie culture by offering backgrounds far more interesting than your dirty bathroom mirror? No matter how you feel about the selfie factories, they're not going anywhere — especially in Dallas, where we can count at least eight happening just this last year. But nobody does it as well as Sweet Tooth Hotel, which changes themes seasonally and is always impeccably constructed by custom designers Built by Bender, with art installations by some of the city's greatest. With a Prince-themed bar and a silent disco fitness class, there's far more to do at Sweet Tooth than making a duck face with your friends.