Data Bridge Castle

Data Bridge Castle is a place on Zenith introduced in Season 5.

Overview
It is a castle in Zenith's ocean, where the Gem of Empathy was located. There is also a big throne inside. Zenith's Ocean Gate is located near this area.

Season 5
In "The Gem of Empathy," after stealing the powers of Lithia, the Gatekeeper of Zenith's Oceans, Tritannus pollutes the nearby castle as a present for his cousin Aisha and the Winx. The pollution spreads rapidly throughout the castle, mutating its guards into mer-monsters. The mer-monster guards are ordered by Tritannus to find some fairies.

Bloom, Aisha, and Tecna travel to Zenith in search of the Gem of Empathy; Roy tags along as well. Tecna bonds with Lithia which restores her powers. As gratitude, Lithia leads the Winx and Roy to Data Bridge Castle but are met with a polluted castle. The group is told by Lithia that Tritannus was here. They find it odd that there are no guards as they enter the castle. Tecna's Guardian of Sirenix is called for assistance in locating the gem. She gives them this clue: "... look where the one rules over the many." The answer is the throne and there, sits the Gem of Empathy. Tecna tries using magic on it but to no avail. Aisha thinks it is due to the vines encasing the throne and tries to clear it. Tecna warns her too late as the polluted plant roots causes the two to turn aggressive towards one another. They are then ambushed by the mer-monster guards, and the fight between Tecna and Aisha is not helping.

Bloom tries her magic on the gem and get the same result. She wonders why and when she sees her friends fighting, she realizes it is because of the fighting. Bloom uses her powers on Aisha and Tecna to release them from the pollution's control, which returns the two to normal. While Roy guards them from the mer-monsters, the three fairies join their powers to cleanse the castle of Tritannus's pollution, which earns them the gem.