It was like almost any other temple to the pony goddesses: a massive domed structure that took up an entire city block, its second floor consisted of recessed walls that ultimately gave way to a retractable roof, designed so that ponies could view the goddess' holy celestial body and whisper prayers unto it and their goddess during times of worship. Like all other temples to Luna, it had been decorated with symbols and icons towards the moon goddess, with small nods towards Celestia and the sun. It was the same with the sun goddess temples - the ponies had said each sister loved the other and would have been saddened if the other was not included in some way. 