Tartarus

Special Prison For Villain Criminals - Tartarus, is a prison located in the middle of Deep Hollows Ocean.

Description
The high-security prison appears to be located on an island, surrounded by giant walls. The only access to the prison is a long bridge connected to a city with the entrance guarded by two or more guards that check every vehicle going in.

History
Not much is known about the Prison's History. It was originally built in 1922.

Prisoners

 * Kamek
 * Wario's Father

Trivia

 * In Greek Mythology, Tartarus is a dungeon in the underworld where the worst sinners (including the Titans) are forever kept to be tortured for their evil deeds.