A walk around the castle grounds is a must, especially the rose garden out back. It’s here one finds the Katyń monument, a 6.5 metre bronze effort permanently festooned with flowers and candles. Unveiled on September 17, 1999 – the 60th anniversary of the Soviet invasion – this hefty memorial commemorates the 22,000 Polish officers massacred by Beria’s NKVD in 1940.