Wicked City is a term used to describe three cities in the Bible: Sodom (5 letters), Gomorrah (8 letters) and Babylon (7 letters). These cities are known for their wickedness and were destroyed by God as punishment. Sodom and Gomorrah were destroyed by fire and brimstone, while Babylon was destroyed by the Medes and Persians. The destruction of these cities serves as a warning to other cities of the consequences of wickedness.