🇰🇭 Cambodia · Hydraulic works
West Baray — Angkor Hydraulic Reservoir
Angkor (Baphuon style middle Angkor) · Khmer Hindu (Suryavarman I court)
Khmer 7.8×2.1 km reservoir 1050 CE 53 million m³ with West Mebon island temple, hydraulic empire core.
🇨🇳 China · Rock-cut
Yungang Grottoes — Western Caves Extension (Caves 26–40)
Northern Dynasties (Northern Wei late) · Tuoba Wei (Xianbei) Buddhist with Han artisan school
UNESCO Yungang western 15-cave zone 494–525 with central-pillar and collapsed colossus.
🇴🇲 Oman · Hydraulic works
Aflaj al-Ain Nizwa Branch — Daudi Falaj Highland Channel
Sasanian to Islamic · Omani, Sasanian Persian, Ibadi
Nizwa Daudi mother well 30 m with 8-km tunnel and shari'a sharing basin, UNESCO aflaj highland branch.
🇾🇪 Yemen · Hydraulic works
Sadd el-Arim Secondary Dam — Marib North Spillway
South Arabian (Sabaean to Himyaritic) · Sabaean Saba and Himyarite
Marib north secondary 750-m earthen with Almaqah sluice temple 50 musnad inscriptions, Sabaean 750 BCE spillway.
🇲🇷 Mauritania · Ancient village
Dhar Walata (Oualata)
Neolithic to medieval (1500 BCE–17th c; historic 11th c) · Tichitt culture → Soninke Wagadu → Beidane Moors
Neolithic to oasis caravan terminus: Tichitt-culture compounds plus red-white geometric plaster houses of 11th-c Ghana twin capital Biru.
🇪🇸 Spain · Hydraulic works
Les Ferreres Aqueduct (Devil's Bridge, Pont del Diable — Tarraco Aqueduct)
Roman Augustan (late Republic to early Principate) · Roman Tarraconensis (Tarraco Colonia)
217-m Augustan double-tier arcade (20 BCE–20 CE) 27 m high — Tarraco's Francolí aqueduct masterpiece.
🇾🇪 Yemen · Hydraulic works
Marib North Sluice & Northern Oasis Canal (Sadd Ma'rib al-Shamali)
Sabaean to Himyarite (8th c BCE–6th c CE) · Sabaean / Himyarite
North sluice of Great Dam of Ma'rib (750 BCE–575 CE) — 23-m cut-stone control feeding northern oasis.
🇨🇳 China · Hydraulic works
Dujiangyan Irrigation System
Warring States, Qin to Qing continuous · Qin state engineers under Li Bing (later successive dynasties maintenance)
256 BCE Qin weir still irrigating 5,300 km²—world's oldest dam-less hydraulic system.
🇵🇪 Peru · Geoglyph
Chinchaysuyo Ceque Lines (Greater Cusco)
Late Horizon (Inca Imperial) · Inca (Quechua)
High-altitude (3,400 m) radial sacred geography of the Inca capital: 41 ceque lines radiating from Coricancha/Qorikancha to huaca shrines bounding Sacsayhuamán pampa and Chinchaysuyo suyu.
🇪🇸 Spain · Rock art
Siega Verde Rock Engravings – Águeda River
Upper Palaeolithic (Solutrean–Magdalenian) · Solutrean–Magdalenian hunter-gatherers of western Iberia
443 Palaeolithic figures on Águeda schist—UNESCO trans-frontier extension of Côa Valley (20–10k BCE).
🇨🇳 China · Rock art
Zuojiang Huashan North Ningming Rock Art
Warring States to Western Han · Luoyue / Zhuang ancestors
North Mingjiang tributary cliffs with 210 frog-men and scaffold postholes.
🇴🇲 Oman · Hydraulic works
Buraimi Aflaj System (Oman-UAE Border Oasis)
Iron Age to Modern (Hafit to Islamic) · Hajar oasis (Magan to Islamic)
Cross-border aflaj network (320 m, 24°15′N 55°45′E Buraimi) extending the UNESCO Aflaj Irrigation Systems of Oman (1207, 2006) from Nizwa-Sharqiyah to the Hajar-Buraimi piedmont.
🇷🇺 Russia · Kurgan
Ak-Alakha Plateau Frozen Kurgans (Ukok Extension)
Early Iron Age (Pazyryk) · Pazyryk (Siberian Ice Maiden horizon)
Southern flank of Ukok Plateau World Heritage 768 (2,200 m, 49°21′N 87°30′E) Ak-Alakha River valley palsa permafrost where Molodin 1993 Princess of Ukok site (Ak-Alakha-3) and 6 new kurgans form…
🇮🇷 Iran · Hydraulic works
Shushtar Band-e Kaisar — Roman Bridge-Dam Caesar's Dam
Sassanian (Roman capture) · Sassanian Persian, Roman legion engineers
Karun 500-m Roman arch bridge-dam by Valerian's legion 260 CE with Gargar mills, core of UNESCO Shushtar system.
🇹🇳 Tunisia · Ancient city
Dougga (Thugga)
Numidian to Byzantine (6th c BCE–6th c CE; peak 2nd–3rd c CE) · Numidian / Carthaginian / Roman / Byzantine
Hilltop Numidian–Roman city covering 70 ha, Dougga is Tunisia's best-preserved Roman town with Capitol, theatre, Ataban mausoleum and Punic sanctuary.
🇦🇲 Armenia · Temple complex
Echmiadzin Cathedral and Churches — Vagharshapat
Early Christian Armenian (301–650 CE) · Early Armenian Apostolic; Urartian–Hellenistic pagan predecessor
301 CE Gregory the Illuminator's cathedral over Tir temple — world's oldest state church, Hripsime 618 tetraconch.
🇬🇷 Greece · Temple complex
Erechtheion — Acropolis of Athens
Late Classical (Peloponnesian War) · Classical Athenian
421–405 BCE asymmetric Ionic with Caryatids, housing Athena Polias and Poseidon-Erechtheus on Mycenaean terrace.
🇮🇹 Italy · Rock art
Valcamonica Rock Engravings – Naquane National Park
Epipalaeolithic to modern with Iron Age peak · Camunni (Rhaetic-adjacent Alpine) and predecessors
140,000 figures on 2,000 Alpine slabs—world's densest European rock art valley (UNESCO 1979 No.1 Italy).
🇦🇿 Azerbaijan · Rock art
Gobustan Kichikdash South Petroglyphs
Upper Palaeolithic to Iron Age · Gobustan hunters, Kura-Araxes, Classical (Roman contact)
South slope of Kichikdash with 1100 boat and aurochs hunt cupule petroglyphs.
🇨🇳 China · Hydraulic works
Turpan Karez Extension (Flaming Mountains North Piedmont)
Imperial Chinese (Ming-Qing) on Han antecedent · Turpan Uyghur / Han frontier
Eastern extension (30 m asl, 42°57′04″N 89°11′22″E Turpan municipal 42.9512,89.1895; Flaming Mountains 100 km E-W 42.98,89.20 500-850 m) of Turpan-Hami Silk Road karez water system UNESCO 1442 Silk…
🇰🇬 Kyrgyzstan · Ancient city
Suyab (Ak-Beshim)
Western Turkic → Tang protectorate → Karluks/Qarakhanid 6–12 c. CE · Sogdian → Turkic Khaganate → Karluks (Silk Road Buddhist-Christian-Manichaean)
Sogdian–Turkic Silk Road capital (c.6–12 c. CE) at Ak-Beshim in the Chu Valley — 35 ha walled shahristan (650×560 m) with Buddhist temple complex (two temples 50×30 m with clay Buddhas), Nestorian…
🇱🇦 Laos · Ancient temple
Vat Phou (Vat Phou and Associated Settlements)
Chenla (5th–8th CE) → Khmer Angkor Wat (11th–13th) → Lao Buddhist (13th+) · Chenla Khmer (Hindu Shaiva) → Angkor Wat Khmer → Lan Xang Laotian Buddhist
Khmer Hindu–Buddhist temple complex and ancient city (c.5th–13th century CE, Chenla to Angkor Wat period) at Phou Khao foot near Mekong in Champasak, Laos — UNESCO World Heritage 'Vat Phou and…
🇨🇳 China · Rock art
Zuojiang Huashan West Chongzuo Rock Art
Bronze Age to Han · Luoyue / Lạc Việt (ancient Zhuang ancestors), Dian periphery
West bank cliff opposite main Hua Mountain with bronze-drum anthropomorph sequence.
🇸🇦 Saudi Arabia · Rock art
Jubbah Rock Art – Jebel Umm Sinman
Holocene: Neolithic to Bronze Age to Thamudic · Successive Arabian Holocene cultures (hunter-herder to caravaneer)
10,000-year petroglyph palimpsest at Jebel Umm Sinman—UNESCO rock art on a vanished lake shore.