Top ten things to do in Rome for less than 10 euros courtesy of Bookings For You. Yes - you read it correctly....for less than 10 euros! You can enjoy the city even if you're on a tight budget! 1) Visit the Trevi fountain and Spanish steps. Throw a coin into the Trevi Fountain. Superstition says that if you throw it over your shoulder you are destined to return to the city. Then relax on the Spanish steps, the longest and widest staircase in Europe, and watch the crowds!