REMOVE

1. caves
2. 5th century

WHAT

1. sculpture (visual works) (2)

WHERE

1. China (nation) (2)
2. Datong, China (1)
3. Luoyang, China (1)

WHO

1. unknown Northern Wei (Chi … (2)

WHEN

1. Northern Wei (2)
2. 4th century (1)
3. 6th century (1)