Amazo

The Amazo is a ship on which a sadistic captain kept Oliver Queen, Anatoli Knyazev, and several others in his attempt to learn the location of "the graves" on Lian Yu. Sara Lance is also known to have been present on this ship in some capacity, in better condition than Oliver was when he was shot.

Trivia
The Amazo shares its name with a robotic entity in the DC Universe. The robot was created by Anthony Ivo, who is associated with the ship in "Arrow".