Marble arch?

I think the main difference is you're allowed to leave a palace 😁

I would add :

If there is a difference, will people see it ?

After all...thats seems like a place where you can be "safe"...

Many will sacrifice freedom for safety, without even knowing.

from an esthetic and trust pov, there's no difference

Whoa. You went deep

I just call it an office, sounds better than prison.