Shidira Rama was the large capital city of one of the provinces on the Eastern Continent. You can explore the city in Monster Farm Online by going on the two quests (What Lurks in the Dark and Missing the Darkness) offered at the end of level 5 of the Pandora Caves.
After its destruction you are able to explore the ruins of the city in Monster Farm Lagoon. Much of the ground is made of marble slabs, and grand staircases and columns abound. It is also one of the venture locations offered in My Monster Rancher.