See: Liadon Manor
The city, as a site of frequent crossover, is a rare kind of place that exists both in Temphere and on the other side of the veil in the Feywilde. Caellond is built explicitly to accommodate this, with empty lots in both versions of the two to leave space where buildings on the other side would appear during crossovers. There is also a great deal of cultural bleed between the two sides, leading to some architectural and design quirks in Caellond that appear strange to a native of the Material Plane. It is also very commonplace to encounter races native to the Feywilde in Caellond that are otherwise rarely seen in Temphere.