The \"pop-up\" phenomenon, long popular for art and music festivals and on the culinary scene, is finally catching on in the hotel sphere. A new breed of pop-up hotels offers unique, limited-duration lodging experiences to travelers, with runs typically lasting only a few months at a time. Often cropping up as collaborative projects between international artisans and designers, these experimental accommodations allow contemporary design to embrace an eco-chic aesthetic, and are typically conceptualized to leave minimal footprints on their environment. Fortunately for travelers, this usually translates to unique, beautiful, and usually more affordable hotels set in inspiring locales—worthy of dedicated trips before they disappear.