The Atantano Shrine is a historic commemorative marker near Piti, Guam. It is a pyramidal structure of coral limestone and concrete, about 2.5 metres (8.2 ft) in height, with base dimensions of 1.6 metres (5.2 ft). It is topped by a wooden cross and protected by an open concrete shelter. The monument was built in at least three stages, the early stages acting as bases for the mounting of the later ones. Panels on three sides carry inscriptions.