The ruins of Talatal Ghar are located about 4km south of central Sivasagar on AT Rd. Designed as a subterranean palace complex for the Ahom kings, this sprawling structure is now mostly in ruins, although it's possible to walk along its ramparts and explore some of the arched portals that now stand above ground level. Adjacent to the palace is Gola Ghar, an elegant structure with a vaulted roof that is believed to have been the royal armoury.