Cloud / light / sky
Boundary / field / wall
Mast / pylon / sign
Farmhouse / place of worship / warehouse
Plant / shrub / tree
Canal / river / stream
Animal / insect / person
Horizon / panorama / vista
Aircraft / bird flock / contrail
Crescent / dome / spire
Dale / hill / valley
Line / path / road
Homestead / outhouse / roof
Footprint / ley line / mill
Lockdown
2020