The Major Tanjore temple comprises over 100 underground passages to different locations. The underground tunnels also contain some secret passage leading to different locations such as the Raja Raja chola Palace and other important places as well. The underground passages lead to the other temples and the other sites in and around Tanjore as well. Most underground passages have been sealed and if the people choose the wrong passage then there are possibilities that the path can lead to the dangers as well. It can also be a trap for Raja Raja Chola 's safety in the Kingdom.
Brihadeeswarar temple 's top-most portion of Raja Gopuram is a single stone, weighing 80 tons. Even now the technique used by the Cholans to pull the mass stone to the gopuram peak is unknown as the temple was constructed when machines such as cranes, rope cars, and escalators were not accessible.
Another Raja Gopuram architectural wonder is, the tower's shadow doesn't fall on the ground. The geometrical structure is perfect and it was built with perfect balance 1000s of years ago, which can withstand natural and political phenomenon.