A 'museum without walls'

The Korean city of Gyeongju is renowned for the well-preserved history that permeates it. These rolling landforms are all exhibits in themselves—they're not natural hills but built-up burial mounds called tumuli. Each tumulus hosts the remains of royalty from the ancient Silla kingdom that ruled much of the Korean peninsula for about a millennium, from 57 BCE to 935 CE. Almost two dozen of these tombs make up the Daereungwon complex nestled within modern Gyeongju.