Karnak is the name of Adrian Veidt's Antarctic retreat. A large and luxurious complex, it consists of several buildings. It is served by a tiny landing strip. As Antarctica is owned by no nation, he took with him three Viet-cong refugees where they were safe during the purges of Vietnam.
Dark marble obelisks with rolling purple highlights lead to the fortress housing rooms of various themes. Visible in the story are a vast gymnasium, a large dining room, a room with a large pool, one containing a wall of television monitors from which Veidt can observe world newscasts and events, adorned with a mural of Alexander cutting the Gordian knot, and a meditation chamber containing an orrery.
The complex also included a vivarium, a huge glass dome housing a terrarium where many species of plant and animal life were kept alive, despite the harsh climate outdoors. Upon returning to Karnak after securing his plan for world peace, Veidt lectures his Vietnamese servants on the origins of his superhero persona. However, Veidt also poisons all three men and opens the dome, letting in the frigid air, killing all the life within the terrarium.
Around the complex Veidt had installed eight tachyon generators which, coupled with another eight in orbiting satellites, prevented Dr. Manhattan from seeing the future clearly.
Karnak also contained an intrinsic field subtractor much like the one that Jon Osterman worked with at Gila Flats prior to the accident that transformed him into Dr. Manhattan. Veidt, using his pet lynx, Bubastis, tricks Manhattan into entering the field generator, attempting to destroy his former colleague.