Once considered “the eighth wonder of the world,” the Amber Room was a treasure of kings and architectural marvel before being stolen by Nazis and lost to history. So…what happened? It all depends on who you ask. Boston area listeners, join the Endless Thread team on July 25 for a behind-the-scenes look at our five-part series, "Infectious: The Strange Past and Surprising Present of Vaccines – And Anti-Vaxxers." Event info: https://wbur.fm/2XXJIts