There are 3 comprehensive possibilities (correct me if you think differently):
1. These crafts are ET origin
2. These crafts are human origin (secrete military tech or similar)
3. This is a psyop
Due to the supposed feeds and eye witness accounts, it seems infeasible there is a 'weather balloon' type explanation
Any of these 3 possibilities is very interesting. I have my own take for what is most likely. But I'd like to hear thoughts of others.
It seems every video I've come across, it was all electronic so it has me thinking just a software error.
Built in 1905 of reinforced concrete.
Worth a visit.