Rome is awash with drinking fountains offering free water.

Tourists arriving in Rome can do their bit for the environment by avoiding or limiting their use of plastic bottles by availing of the city's ubiquitous drinking fountains.

Known is Rome as nasoni, there are more than 2,000 of these fountains providing fresh running water for free.

Visitors to the Colosseum can also avail of a sparkling water dispenser at a kiosk outside the Colosseo metro.

In addition to helping the environment, tourists will avoid paying inflated prices for bottled water at mobile snack bars or from street hawkers selling water illegally.

There is even a helpful map of Rome's drinking fountains.