🇧🇬 Bulgaria · Buried city
Varna Necropolis
Late Chalcolithic / Copper Age · Varna culture (Karanovo VI/Gumelnița)
Chalcolithic cemetery (4600–4200 BCE) with world's oldest worked gold hoard — 3,000 gold objects, 6.5 kg, in Grave 43 (status male with gold penis sheath) and 294 other graves, demonstrating earliest…