Qualifications for a site/place/or monuments to become a World Heritage Site include being unique and diverse, it must also be considered to be of outstanding valie to humanity. A World Heritage Site (WHS) can be natural or man-made. Postives for being a community surrounding sites would include just being located to one of many "wonders of the world," another would be that WHS receive emergency assistance if they are in immediate danger, so your community too would receive similar assistance. A negative of having your community surround a WHS would be the tourism that might take place.
One WHS in Italy is Venice and its Lagoon. This site is important because buildings (big and small) contain work from some of the greatest artist to ever live. The site is also absolutely beautiful and its lagoons spread over 118 islands.
A second WHS is the Ferra, City of the Renaissance and its Po Delta. This location marked the beginning of modern town planning. It also displays to universal heritage the infulence of Renaissance culture on a natural landscape.
Finally a third WHS is the Church and Dominican covent of Santa Maria delle Grazie. On a wall of this church is the painting of "The Last Supper" by Leonardo da Vinci. One of the greatest artist of all time, and one of the most famous art peices as well.