Database: Acqua Vergene

Named partially for the virgin waters that flow through its channels and a muth that thirty Roman soldiers asking for water were led by a beautiful young girl to the source springs (how they knew she was a virgin is pretty self-evident), the Acqua Vergene is the most famous water source in Rome. Its springs provide the, the , the north and south fountains of the Piazza Navona and the fountains of Piazza del Popolo with their water, none of which you will get to see, because they were all built in the mid-16th century.

Considered to be some of the best drinking water in the world, Romans and visitors line up to fill containers from the fountains, although after a 2007 construction accident that halted the Vergene's flow temporarily, and the chemical cocktail distilled daily in the Trevi Fountain to keep it clean, I'd stick to tea.