I just finish travelling two new state at my class just now - Samaria and Jericho. Jericho is now an abandoned hill and was curse that no one can built any structure at this hill). Jericho attracted my attention because it was covered by two layer of retaining wall and the top of the retaining wall also used as accommodation. Furthermore, the story talk about Joshua and the Israelites march around the city of Jericho. Jericho was covered by two layer of retaining wall and it's hard to conquer this place. But the Lord said to Joshua to get this place not by weapon, not by fighting and only marching and blowing the trumpets. God method is always different than ours. It's just depend on our faith with God because nothing is imposible with God.
New International Version (NIV)
Now the gates of Jericho were securely barred because of the Israelites. No one went out and no one came in.