Qingming Shang He Tu detail, 12th century. Handscroll, painting on silk.
I hope to visit China at some point, and when in Beijing, at The Palace Museum, a must see is Zhang Zeduan's original 12th century scroll painting Qingming Shang He Tu, or Along the River During Qingming Festival. In the exceptional tradition of such paintings, notably those from the Song Dynasty, Zhang Zeduan's is a venerated masterpiece, a national treasure. It has inspired several copies throughout the years.
To think, it predates the likes of Hieronymus Bosch or more similarly Pieter Brueghel the Elder by over 300-400 years.
If we could go back in time, perhaps that'll be the aerial picture from our UFO.
Above link to panorama of original Qingming Shang He Tu.
Above links to detail views.
Above link to panorama of 18th century remake.
Above link to compare and contrast both panoramas.
I could only find one book on the painting that's readily available, Qingming Shang He Tu: Scenes along the River during the Qingming Festival (Better Link Press, 2008).
Yang Dongsheng's Along the River During Qingming Festival (Tianjin People's Fine Arts Publishing House, 2008) may be a good one to get.
Other titles I could gather online, in chronological order:
Zhang Anzhi/Zhang Zeduan Qing ming shang he tu yan jiu (1962)
Liu Yuanlin/Qing ming shang he tu zhi zong he yan jiu (1969)
Roderick Whitfield et al./Bright as Silver White as Snow (Resources Ltd, 1998)
Liu Jian Ping/Qingming Festival (Tianjing People's Fine Arts Publishing House, 2004)
Zhao Guang Chao/Notes: Riverside (SDX Joint Publishing Life, 2005)
Ren Hui Ying/Zhang Zeduan Riverside (Liaoning Fine Arts Publishing House, 2006)
Qui Ying/Quiying Model the Along the River During Qingming Festival of Zhang Zeduan (Cultural Relics Publishing House, 2007)
Lei Shao Feng/Assumption Painting (Shandong Pictorial Publishing House, 2008)
Saying Qingming (Shanghai Ancient Books Publishing House, 2008)
Along the River During Qingming Festival (Tianjin People's Fine Arts Publishing House, 2009)
Wu Xue Shan/Zhang Zeduan Riverside (Oxford University Press, 2009)
Anno Mitsumasa/La Chine de Zhang Zeduan (L'Ecole des Loisirs, 2010)
Bei Ji Cang Lang/Riverside (Anhui Literature and Art Publishing House, 2010)
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow eds./Zhang Zeduan (Betascript Publishing, 2010)
Wang Hong Qi/Special Art Appreciation (Tongji University Press, 2010)
Adeline Yen Mah/Along the River: A Chinese Cinderella Story (Delacorte Press, 2010)
Above link to article on world's longest woodcarving of Qingming Shang He Tu.