OK, so you don't feel like taking the Historic Trolley when touring Naples. You prefer to get up-close and personal with all the beautiful natives...Well, here's another alternative - a Segway Human Transporter! This self-balancing,two-wheeled Segway sports a high-tech gyroscopes that automatically respond to your body's movements, "sensing" when it should speed up and slow down.
You stand on a small platform between left and right wheels as you hold onto handlebars at a waist height. The Segway handles the balancing for you, so that you're always upright as you glide through the city.
And if you fall * in love with this form of transportation - you can take one home with you. For the right price, of course ;-)
*see the fall of Bush