Most stolen masterpieces are small enough to slip under a coat. This one weighed six tons. The Amber Room was an entire chamber paneled in fossilized tree resin, gold, and gemstones, hailed as the eighth wonder of the world, and amid the chaos of World War II it vanished completely.

This episode unpacks the creation, theft, and enduring mystery of the legendary Amber Room, valued today between 142 million and half a billion dollars. We trace how it was built, how it was lost, and why it still haunts the historical record decades later.

• Its origins as a Prussian royal project, gifted to Peter the Great in 1716 as an extravagant diplomatic bribe and shipped as modular tongue-and-groove panels
• How architect Rastrelli expanded it sixfold at the Catherine Palace using mirrors, gilding, and over 13,000 pounds of amber
• T ...