Loki Temple of Deep Sashelas
large structure, with stone work covered on one side by fine relief carvings of waves, teaming with dolphins and other sea creatures. Large panels of glass are worked into the reliefs, throughout the front and ceiling lead to dappled light throughout the main rooms/sanctuary on the first floor. The ceilings are 30 feet high, supported by columns carved to be reminiscent of a kelp forest. The entire effect combines to give the sense of walking under the ocean.
Map from Dyson Logos
https://dysonlogos.blog/2018/10/22/guildhall-and-temple-of-the-ancient-masters/
Below ground are the crypts, with a secret entrance to the Catacombs of Loki