One of the best experiences of mi life has been volunteering at Hogar San Francisco de Asis in Peru.
There, Dr. Anthony Lazzara treats children that require specialized, 24/7 medical attention. Some kids actually live there and some others stay only for a couple of months or as long as it's needed. The house hosts volunteers, as well as full time nurses, a cook and Dr. Lazzara himself. The top pictures are taken at the house and at the neighborhood park while the bottom pictures are taken at a house where the kids are invited once a year for a feast full of delicious food (not that the food at the house is not delicious) and a great restful evening.