PFH1185423: China: Chenghuang Pavilion (The City God Pavilion), Hangzhou / Bridgeman Images

PFH1185424: China: Chenghuang Pavilion (The City God Pavilion), Hangzhou / Bridgeman Images

PFH1185425: China: Liuhe Ta or Six Harmonies Pagoda, Hangzhou / Bridgeman Images

PFH1185428: China: An opium seller, Canton (Guangzhou), c. 1880 / Bridgeman Images

PFH1185429: India / China: The 'Balling Room' in a Patna opium factory with hundreds of opium balls prepared for use in the China trade. Lithograph, W. S. Sherwell, c. 1850 / Bridgeman Images

PFH1185434: Laos: Boat on the Mekong River, north of Luang Prabang / Bridgeman Images

PFH1185441: Laos: Buddha figures line the inside of the Pak Ou Caves, Luang Prabang / Bridgeman Images

PFH1185455: Vietnam: Detail on one of the Nine Dynastic Urns in front of the Hien Lam Pavilion, The Imperial City, The Citadel, Hue / Bridgeman Images

PFH1185460: Vietnam: Detail on one of the Nine Dynastic Urns in front of the Hien Lam Pavilion, The Imperial City, The Citadel, Hue / Bridgeman Images

PFH1185469: UK / England: Thomas Penson De Quincey (1785 – 1859) was an English essayist, best known for his 'Confessions of an English Opium-Eater' (1821) / Bridgeman Images

PFH1185470: UK / England: Thomas Penson De Quincey (1785 - 1859) was an English essayist, best known for his 'Confessions of an English Opium-Eater' (1821) / Bridgeman Images

PFH1185473: Papaver somniferum, the Opium Poppy, 19th century botanical painting / Bridgeman Images

PFH1185478: China: Canton (Guangzhou) looking south towards Honam Island across the rooftops of some of the Thirteen Factories (Saap Sam Hong), c. 1840 at the time of the First Opium War / Bridgeman Images

PFH1186302: Vietnam: Dragons decorate the eaves of the Dien Thai Hoa (Palace of Supreme Harmony), The Imperial City, The Citadel, Hue / Bridgeman Images

PFH1186308: India / Tibet: A wooden and metal grain measure, Ladakh, 19th century / Bridgeman Images

PFH1186313: Vietnam: Dien Thai Hoa  (Palace of Supreme Harmony), The Imperial City, The Citadel, Hue / Bridgeman Images

PFH1186322: Vietnam: Traditional Vietnamese window, Royal Theatre, The Imperial City, The Citadel, Hue / Bridgeman Images

PFH1186328: Vietnam: Old gate within the Imperial City, The Citadel, Hue / Bridgeman Images

PFH1186329: Vietnam: Old gate and duck pond within the Imperial City, The Citadel, Hue / Bridgeman Images

PFH1186334: China: A seated ascetic meditating while a bird builds a nest on his head. Terracotta panel, 11th century Liao Dynasty / Bridgeman Images

PFH1186344: Vietnam: The Divine Eye looks down from an outer wall of the Cao Dai Temple, Cao Dai Holy See, Tay Ninh Province / Bridgeman Images

PFH1186345: Vietnam: Outer wall decoration at the Cao Dai Temple, Cao Dai Holy See, Tay Ninh Province / Bridgeman Images

PFH1186363: Vietnam: Cao Dai priest in the Cao Dai Temple, Cao Dai Holy See, Tay Ninh Province / Bridgeman Images

PFH1186364: Vietnam: Cao Dai priest in the Cao Dai Temple, Cao Dai Holy See, Tay Ninh Province / Bridgeman Images

PFH1186368: Nepal: Pilgrim prostrating at the lower part of Swayambhunath (Monkey Temple), Kathmandu Valley / Bridgeman Images

PFH1186379: Nepal: Monks circumambulate the main stupa, Swayambhunath (Monkey Temple), Kathmandu Valley / Bridgeman Images

PFH1186383: Nepal: Holy water is distributed to pilgrims for pouring on the heads of statues, Swayambhunath (Monkey Temple), Kathmandu Valley / Bridgeman Images

PFH1186390: Sri Lanka: Raja Singha II, King of Kandy (1629-1687) / Bridgeman Images

PFH1186391: Nepal: The main chedi (stupa) at Swayambhunath (Monkey Temple), Kathmandu Valley / Bridgeman Images

PFH1186396: Nepal: Pilgrims at Swayambhunath (Monkey Temple) / Bridgeman Images

PFH1186403: Turkey: Suleiman the Magnificent, also known as Suleiman I (r.1520-1566), 10th Emperor of the Ottoman Empire, receiving the homage of King John Sigismund of Hungary at Zimony / Zemun, 1556 (detail) / Bridgeman Images

PFH1186431: Nepal: Sadhu (Holy Man) wearing rudraksha (seeds used for prayer beads in Hinduism) around his neck, Pashupatinath, Kathmandu / Bridgeman Images

PFH1186433: Nepal: Sadhu (Holy Man) wearing rudraksha (seeds used for prayer beads in Hinduism) around his neck, Durbar Square, Kathmandu / Bridgeman Images

PFH1186436: Nepal: Sadhu (Holy Man) wearing rudraksha (seeds used for prayer beads in Hinduism) around his neck, Pashupatinath, Kathmandu / Bridgeman Images

PFH1186440: Nepal: A young Sadhu (Holy Man) sits above a four-faced Shivalingam, Pashupatinath, Kathmandu / Bridgeman Images

PFH1186442: Japan: 'Kirino Toshiaki's wife', from the series 'Eastern Pictures of Heroic Women Compared'. Tsukiokoa Yoshitoshi (1839-1892), 1880, Yoshitoshi, Tsukioka (1839-92) / Bridgeman Images