SPAWORLD HOTEL & RESORT

This guide to SPAWORLD in Osaka's Shinsekai district explains why Japan's spring-poor city built an entire indoor world of hot springs, spread across a European floor of Roman and Spanish-styled baths and an Asian floor of Islamic and Persian ones. It traces the monthly twist that governs who gets which continent, and how regulars plan their visits around the swap. Best entered with steam still rising, before the floors decide who you are this month.