|This article belongs to the Classic Continuity.|
- Ben 10,000 (first appearance)
Ben 10: Ultimate Alien
- Ben 10,000 Returns (first re-appearance)
Ben 10: Omniverse
- And Then There Was Ben (first re-appearance)
- Omnitrix City is sometimes called New Xenon by alien visitors.
- The signs are written in alien languages like Galvan, Uxorite and Gourmand.
- Most of the buildings were designed by Eddie GrandSmith.