The Umatac Outdoor Library is an unusual bit of local history: an open-air reading space built in 1933 by Francisco Quinata Sanchez and a group of village volunteers, constructed from local materials and intended to bring books to a community without a formal library building. The structure — a simple roofed enclosure open on the sides — is listed on the National Register of Historic Places, which makes it one of Guam's few officially recognised historic structures outside of the Spanish colonial fortifications.
It is a small thing, but worth a look on the way through the village. The fact that a community project from 1933 survives on the National Register says something about both the scarcity of pre-war buildings on Guam (most were destroyed in World War II) and the seriousness with which the community took self-improvement.