The Time Ziggurat is the planetary headquarters of the Travelers, where Wesley Crusher meets the Protostar crew and the Loom attack.
The Time Ziggurat is the planetary headquarters of the Travelers, the omnitemporal beings Wesley Crusher joined after leaving Starfleet. In The Devourer of All Things, the Protostar crew arrives there and discovers that their mysterious benefactor is Wesley.
Wesley explains that the hole in time the crew created is attracting the Loom, parasitic creatures that feed on dying timelines. The Loom attack the Ziggurat, the Infinity is destroyed, and Janeway brings the Voyager-A to help before Wesley opens a portal that sends the young crew to Chakotay.