Reportedly visits sites for those bound to land (5)
I believe the answer is:
serfs
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for serfs that I've seen before include "They were bound to work" , "Farm labourers of Middle Ages" , "They were owned by the feudal lord in the Middle Ages" , "Feudal labourers" , "Those made to work" .)