Allegro modular saunas blend contemporary styling with Old World luxury. Glass walls allow light to penetrate, while high-grade woods lend a classic sauna feel. Wet or dry heat fills the 72-inch-wide-by-82-inch-tall space that is available in several depths. Ergonomic seating with an adjustable upper bench and sloped backrest enables two people to fully recline. Sussman Lifestyle Group, 800.76.STEAM; www.mrsauna.com.