Fort Apugan played an important defensive role during its time. Now a historic site, you can just imagine some of the spectacles its fortified walls have witnessed.
You'll have no end of sightseeing choices when in Agana Heights. Fort Apugan is a good place to kick off here, but there are many other worthy spots to visit. Tumon Beach, T Galleria by DFS, and Guam Premier Outlets are near the history-filled fortress and will round out your day nicely.