Most national memorials are grand affairs, this one is rather understated but quite beautiful and moving. Remnants of an arcade and truncated columns powerfully evoke Poland's chaotic and war-torn past.
I just happened to stumble upon on the Tomb of the Unknown Solider and was blown away. There were gorgeous flowers and two standing guards next to the tomb under an opening. They didn't mind if tourists took photos.
This is one of those areas in Warsaw that I think cannot be missed. It's of high historical importance, is beautifully kept and in a convenient location from the old town. Would recommend coming here just as the sun is setting. There is also a beautiful park just behind it.