Iceberg Lab
From Bandipedia, the Crash Bandicoot wiki
The Iceberg Lab is one of Cortex's bases. It appeared in Crash Twinsanity. Even though it was never seen being destroyed, Cortex had created a new base by Crash of the Titans. The bottom of the lab has a few reachable islands with gems to collect and hidden creates. After you defeat Uka Uka, you are able to go into another room, where you and Cortex fight some of the ants the Evil Twins send. After defeating all the ants, you go into another room where the "improved" evolvor-ay, the psycotron, can teleport you to the tenth dimension.
The Psycotron is actually a failed version of the evolvo-ray, this can be proved by watching cortex's childhood movie, where he tests the evolvo ray prototype on his parrots victor and Moritz.
Cortex's air ship is attached to the iceberg lab, it can take you to madame amberly's academy of evil.
also on the second floor (throne room) in the 10th dimension there is a portal that takes you to victor and Moritz's stronghold of evil(ant agony)
