At this juncture I must heartily recommend the very silly and good natured anime/manga Thermae Romae [1][2]. It's about a Roman bath architect who secretly discovers a way to time travel to modern Japanese baths to steal ideas (though he is slow to understand them). The original run is a little more pure than the Netflix reboot, where the humor / seriousness balance is off (it's never too long of a slog).
Also highly recommend Bessatsu Olympia Kyklos by the same creator for the Tokyo Olympics