The ancient tombs kept under lock and key

BEST OF 2019: A sense of mystery surrounds the keyhole-shaped kofun tombs in Japan.

Although the iconic Mozu Tombs in Sakai city, Osaka have recently been awarded UNESCO World Heritage status, surprisingly little is actually known about these intriguing monuments, kept under lock and key by the Japanese government.  

Video by Matt Dworzańczyk

Image courtesy of Sakai City Government and Sakai City Museum