Marcelo Sara, right top, works with his wife Elpie Sara, on their 16-by-20 foot cinder block home. With help from World Vision and Habitat for Humanity volunteers, the Saras built a new two-bedroom home replacing their one-room shanty. About 14,000 volunteers from 33 countries helped build 293 houses over five days in the Philippines during Habitat for Humanity's 16th annual Jimmy Carter Work Project.