Can be entered like buildings?
Town Hall: Allows access to political options.
Watchtower: Can see if there is anyone on the adjacent map tiles.
Mine: Increases productivity of mine-able natural resources.
Farm: Increases productivity of harvest-able natural resources.
Bank: Allows the payment of employees without the employer present, and allows access to holding personal bank accounts.
Guard Barracks: Allows leaders to set additional guards on duty.