A loud beeping came from her right, and a white cylinder rose from the building’s center. As she approached, a hidden door slid back. She stepped inside without looking, desperate to escape the cold. The interior was a drum six feet wide, and she could touch the ceiling without stretching. The space followed the exterior design cues, having no visible joints, seemingly carved from a block of frosted glass. A cool-white glow radiated from every surface, and the scent of vanilla conjured images of weekend spas.