Final answer:
Stonehenge and Durrington Walls are both megalithic henge structures in England that were likely used for religious or ceremonial purposes.
Step-by-step explanation:
The relationship between Stonehenge and Durrington Walls is that they are both megalithic henge structures located in England. Stonehenge is a well-known monument dating back to 3000 BCE to 2000 BCE, while Durrington Walls is another henge structure believed to have been constructed around the same time. Both structures were likely used for religious or ceremonial purposes and demonstrate the advanced architectural skills of the Neolithic societies that built them.