Bastion -

: A Bastion Remnant is a large, castle-like structure found in the Nether dimension. They are filled with Piglins and valuable loot like Gold, Ancient Debris, and Pigstep music discs. 3. Penetration Testing (HackTheBox)

We speak of a small town as a "bastion of conservatism," implying that it holds the line against the encroaching tides of liberal policy. We describe a remote nature reserve as a "bastion of biodiversity," suggesting it is the last stronghold where rare species are protected from extinction. In this usage, the word takes on a noble, almost romantic quality. It implies resilience, endurance, and the refusal to yield. Bastion