Adds ruins, spires, pyramids, fountains, snowballs, water domes, sandstone pillars and the runes found in them.
A ruin, a spire, a pyramid, a snowball, a fountain and a water dome, each where it generates.
A mossy ruin out on the plains, with a spawner still inside.
A stone spire on the coast.
A stepped sandstone pyramid out in the desert.
A giant snowball standing over the snowy plains.
A mossy fountain in a swamp, with water running down every level.
A glass water dome on the ocean floor.
A sandstone pillar standing over a desert river.
All sixteen runes. Many structures hold one, and each gives an effect when you stand on it or use it.