The tower
https://www.mylittlehouse.org/ancient-jerusalem---the-tower.html
The gate
https://www.mylittlehouse.org/ancient-jerusalem---the-gate.html
The gate building is built with a movable wooden texture gate that you can open or close.
Check the other set “Bible MiniWorld - Ancient Jerusalem - Wall Sections” to add to your model. Also a PDF is included with these set that lists the other Bible MiniWorld sets which include Bible houses that you can use to create a town.
The houses and the fortifications are perfect for a diorama depicting a Bible story; see the sample photo showing the scene from the Book of Acts with Saul (Paul) leaving Jerusalem to go to Damascus.