Which celestial city is the city of Hastinapur's splendour compared to in Adi Parvan of the Mahabharata?

Great Indra's city

According to the Adi Parvan of the Mahabharata, the city of Hastinapur is depicted as a magnificent sight, resembling the vast ocean, filled with hundreds of grand mansions. The city's gateways, arches, and turrets are likened to gathering clouds, displaying a splendour comparable to that of Great Indra's celestial city.