272: Ronald McDonald Houses in 30 countries and regions

10: Million families served

6,000-plus: bedrooms worldwide available for families every night

30,000-plus: volunteers

1,000,000: hours volunteered annually

4032: Spruce St., where the original one opened in Philly in Oct. 15, 1974

3925: Chestnut St., where the second one opened here on May 19, 1981. It eventually was tripled in capacity, to 43 rooms.

3: of January 2008, the date that next home in the vast network to open. That will take place here, at Front and Erie streets, on the campus of St. Christopher's Hospital for Children.

1: doctor, whose suggestion for a home away from home for the families of her young patients led to the creation of the original McDonald House, with plenty of help from the Eagles, then assistant general manager Jim Murray and McDonald's. Dr. Audrey Evans was head of the pediatric oncology unit at Children's Hospital of Philadelphia when she told Murray of her idea. She still works there today as an oncologist. "Of course, it's beyond my wildest dreams that such a thing could happen like this," she said recently. "I had a very simple idea. I think what I called it, I need a unisex Y. Now Y as in YMCA or YWCA. I needed a unisex Y so I could have both sexes together because we had a place, the United Forces place where the men could go and a Christian home for women where the women could go. But we didn't have anywhere for couples."