Russia’s Amber Room
The Amber room disappeared during WWII. In 1941, when the Nazis invaded Russia, the Amber Room was moved to Königsberg Castle. And that’s when the search for the fated Amber Room began, and when the Red Army seized the city in 1941, no traces were found. This room became the eighth wonder of the world. Anatoly Valuev, of the Kaliningrad History and Arts Museum, said, “But no traces of burning amber were found. And it was assumed that the room survived after all. It was hidden in the castle’s basement or it was taken somewhere else.” The former USSR reconstructed the Amber Room, which you can see on display today, though no one truly ever found out where the real Amber Room was (BBC).