These water fountains flow constantly with fresh drinking water for anyone to use and they are everywhere in Rome. Covering the spout with your finger forces the water out a hole on top, creating a arch of water at perfect πΌπ΅πΎπ»πΉπ²π·π° height. The Romans were/are with us.
I'm not sure it ever really went away, but Mussolini brought it back into regular use.