🇨🇳 China · Hydraulic works
Karez of Turpan
Han dynasty 142 BCE to Qing · Han, Uyghur, Hui oasis communities
2000-year karez underground qanat network (5,000 km, 1,100 lines) feeding Turpan Depression vineyards from Tian Shan snowmelt.
🇰🇿 Kazakhstan · Tumulus
Boralday South Picket Row Kurgans (Boralday Southern Alignment Picket)
Late Saka to Wusun transition (180–100 BCE) · Saka late–Wusun transition (Boralday south picket)
5 south picket kurgans 18–26 m spaced 90 m: boundary sentinels with Han silk 140 BCE earliest silk in Kazakhstan.
🇲🇳 Mongolia · Tumulus
Boroo Gol Kurgan Terrace – Selenge River Valley
Late Bronze to Xiongnu Early Iron · Slab Grave / Xiongnu
30 Slab Grave to Xiongnu re-used kurgans (1300 BCE–150 CE) — Selenge River terrace with Han lacquer.
🇨🇳 China · Archaeological wonder
Great Wall of China (Ancient Segments)
Warring States to Han Dynasty 7th c BCE – 220 CE (early segments); Ming 1368–1644 (classic brick) · Han Chinese (Qin, Han dynasties)
World's longest wall system (21,196 km including branches) with earliest rammed-earth frontier walls from Warring States and Han (7th c BCE–2nd c CE) preserved in Gansu corridor (Han Dunhuang walls),…