Jericho - Ai

Jericho     Ai
Smell       Sight
Upon entering the Land of Israel, the second city to be conquered by Joshua was Ai, spelled ayin-yud, an abbreviated form of ayin (ayin-yud-nun, the nun falls) "the Eye." Jericho, the first city to be conquered, comes from the Hebrew word reiach, the sense of smell. http://www.inner.org/hebleter/ayin.htm