We wanted to visit the Imperial Palace on our last day which was 24th No 2019, this turned out to be a Bank Holiday Weekend (Labour Thanksgiving Day) and the Park was very busy. The bulk of the grounds being shut for construction work so we were limited to just the East gardens . There was strict traffic flow management, we had to walk down to the entrance near Tokyo Station. We then had a security check - bottled water had to sampled in front of security to prove it was water and then scanned our bodies with hand held detectors. Once in you had to follow a route around the path , most side paths were closed. It seems the biggest attention to the thousands of photographing tourists was a large wooden structure. I suspect it is a recreation of an ancient set of structures but being the wood looked so new that it didn;t really capture my imagination. Overall a bit disappointing, but I'm sure will be better when the bulk of the grounds are re-opened. Plus points - its free, what we saw of the grounds was beautiful with the trees displaying all of their Autumn colours. As with most if these popular locations an early start will avoid some of the crowds. - We arrived around lunchtime :-(