The Raj raj Ishvara temple was built in the early 11th century. It had the tallest shikhara amongst temples of its time. Its construction was a very difficult task. There were no cranes in those days. The 90 tonne stone for the top of the shikhara was too heavy to lift manually. Hence, the architects built an inclined path to the top of the temple, placed the boulder on rollers and rolled it all the way to the top. The path started more than 4 km away so that it would not be too steep. This was dismantled after the temple was built.