A couple of thousand years ago, there was a truly magnificent sight outside Jerusalem. Back then, the thriving settlement of Herodium stood tall, protected by imposing walls that were visible for miles around. And inside this highly fortified space – built for the Judean king Herod – folks could while away the hours at the theater or soaking themselves at the local bathhouse. Herod even had his burial site here – or so legend had it, anyway. But these rumors remained unproved for decades until researchers finally made a truly momentous discovery.