A giant X painted on the floor… ? Has been there at least a year now by gabzqc Tags:finland 3 comments It is for aligning aerial photos. Markers for [aerial photography and laser scanning](https://www.maanmittauslaitos.fi/en/topical_issues/seen-airplane-circling-sky). Also: [it’s called the ground the ground when it’s outside](https://www.youtube.com/watch?v=ciqnOcdhI7w&ab_channel=abcdbd) – Ron Swanson road pirate treasure Leave a ReplyYou must be logged in to post a comment.
Markers for [aerial photography and laser scanning](https://www.maanmittauslaitos.fi/en/topical_issues/seen-airplane-circling-sky). Also: [it’s called the ground the ground when it’s outside](https://www.youtube.com/watch?v=ciqnOcdhI7w&ab_channel=abcdbd) – Ron Swanson
3 comments
It is for aligning aerial photos.
Markers for [aerial photography and laser scanning](https://www.maanmittauslaitos.fi/en/topical_issues/seen-airplane-circling-sky).
Also: [it’s called the ground the ground when it’s outside](https://www.youtube.com/watch?v=ciqnOcdhI7w&ab_channel=abcdbd) – Ron Swanson
road pirate treasure