This is a set of tall rocks that the original founders of Brimm built the city around. The Brimm Stones still stand at the center of the city.
Some sections of the stones have names, such as “the Arch”, “the Overhang”, “the Base”, etc. There is a slight reverence toward these stones, which are said to hum at times. So far no one has been able to figure out what supernatural thing affects these stones.
Tampering with the stone has caused tremors, so there is a group and laws setup to protect them. Said group has a building built against the stones, which is five stories tall.