In Korea, saunas are essentially public bathhouses. The springs encouraged the building of bathhouses and spas. Many gay bathhouses, for legal reasons, explicitly prohibit or discourage prostitution and ban known prostitutes. Nine of the bathhouses were associated with hotels, hospitals, or sanatoria. Wooden tubs were added to some bathhouses in the 1830s. Bengali streets were well provided with eating establishments, drinking houses and bathhouses. The city also ordered all bathhouses and carwashes to close. In general, the Japanese bathe naked in bathhouses; bathing suits are not permissible. In the Middle Ages, bathing commonly took place in public bathhouses. In some bathhouses nudity is forbidden in the common areas of the establishments. Additionally, there were fountains and "hammams" (bathhouses). Inside the bathhouses proper, marble mosaics tiled the elegant floors. Many bathhouses also provide free condoms and lubricant. By 1873 six bathhouses and 24 hotels and boardinghouses stood near the springs. Sexual encounters at bathhouses are frequently, but not always, anonymous.