Minecraft wiki entry for Bastion_Remnant, associated text: A previously buried bastion remnant that has been exposed.
Exterior of a treasure room bastion remnant.
A bridge bastion remnant.
A stable generating partway through a basalt delta biome.
A housing unit bastion remnant in a soul sand valley biome, right as the player exits the nether portal.
A housing unit bastion remnant almost completely encased in netherrack.