The Castle of Light was one of the two smaller temples for the Remsian religion of Harmony. Harmony revolved around the balance of all things, of which, the balance of Day and Night were highly regarded. As such, the Castle of Light, sometimes called the Castle of Day or Day Temple, was built in the image of the Light of Day.
The Castle was constructed of Mable, which gave the structure a white ivory colour. The Castle was adorned with 5 towers, two front towers, two back towers, and a central tower. The rear towers were toped with silver domes with a crescent at their apex. The Central tower featured a taller silver dome topped with a pair of white wings, the Remsian symbol for Luminis.
The castle's front and back doors were also comprised of Silver, the front door was massive, over 20 feet tall. It was adorned with the symbol of Luminis, the representation of Day. The back door was smaller, standing only 12 feet tall, and it too was adorned with the symbol of Luminis towards its apex. The rear door opened only for certain individuals, while the front door, normally opened for those who bowed before it.
Beneath the the Castle was a series of catacombs that housed a small group of Templars under the guise of priests of the Religion. The catacombs have been hollowed out into quarters, and featured modern amenities like 'freshers, and autochefs.