Nothing can be carried from within a person’s home to the outside on certain religious days. To allow people to carry things as normal, the inside was extended to the outside via a fishing wire.
Religious leaders routinely check the wire to ensure it’s still protecting them. It costs over $100,000 a year to maintain.
Where this goes beyond Manhattan:
Hundreds of other cities around the world have something similar to ensure people can carry things outside where they live.
You may have one in your town or city.