Did you know that salt has anti-aging properties and promotes relaxation? Me neither, but luxury Japanese spa, Saltasia, is based entirely on the idea that women (at least those for whom money is no object) would gladly pay a premium to spend time in rooms lined with hexagon-shaped salt tiles with fancy colored LED lights behind them. Joining fees are between $1,000 and $25,000, so this is no regular day spa; it's a long-term investment in peace of mind. I would love to see a menu of treatments.

Via Trends in Japan.