My choice for circular is the Gay Head Lighthouse in the town of Aquinnah on Martha’s Vineyard. Five years ago the lighthouse was only 46 feet from the edge of the cliffs and was moved to a new location approximately 180 feet from the edge. On May 27, 2015 the preparation for the actual move began. The move was was completed on May 30, 2015 and the lighthouse reopened that August.
The pictures below show a circle of stones where the lighthouse had been before the move.
Inside the Gay Head lighthouse.
https://nowathome.wordpress.com/2020/05/12/photo-for-the-week-67-circular/
MV Obsession 
May 14, 2020 at 5:20 am
Glad they saved the lighthouse. Beach erosion?
May 14, 2020 at 6:32 am
Yes.
May 18, 2020 at 7:28 am
Beautiful lighthouse, and great shots capturing the beauty. I would love to see it some day.
May 18, 2020 at 11:53 am
Thank you so much for the nice compliment. MV is a beautiful place to visit indeed.