Caleb Goldman's headquarters

"It's almost like they're inviting me in" 

The Goldman (DBR) Headquarters.

The Goldman (Or DBR Corporation) Headquarters' (billed as Goldman Building in The House of the Dead 4) is a complex/facility that appears in both The House of the Dead 2 and 4, The building is filled with Cyborg Zombies and Goldman's personal office, in both games, the player visits here last, it is stationed in Venice, Italy. 

Layout

The Base is stationed on its one Island and can only be accessed via bridge, the bridge has many "Checkpoint" or structures on each segment, though none are explored. In The House of the Dead 2, a boss Zombie is fought in front of one of them. While in The House of the Dead 4, a zombie driving a car crashes and falls down a hole the boss made.

Once inside the complex, the Tower itself is extensive and there are a number of paths, labs, and corridors, including a bridge near the top that connects specifically to the CEO office.

The "Checkpoint" to the Headquarters.

Boss fight at the bridge segment.

Yard

The front yard is where there are four zombies before encountering the Magician once again. This location/Battle is only one of the very few chances to see the Tower's exterior. Though in The House of the Dead 4, the battle sequence is skipped and the players go straight into the lobby of the building.

The four zombies encountered in the courtyard.

Another angle of the Tower Headquarters.

The Headquarters Lobby. Watch out for stealthed Cyborgs.

Lobby

This notable and familiar location is the enterance to the Headquarters, The amount of floors that exist between House of the Dead 2 and 4 remain the same, though their are several aesthetic changes between the two, such as the latter having an almost night feel to it. This is where the battle with The Star takes place in The House of the Dead 4.

Lobby Staircase.

Final bridge/staircase 

Once beating the Tower (only in 2) and all the zombies surrounding it, you will come up on a small bridge that hangs over the lobby, which connects to the center and above it is the CEO Atrium. Not a single zombie is encountered here.

Final Bridge to CEO Offices and Atrium.

CEO Atrium Staircase.

CEO Atrium/Office 

The Atrium is the final room before the CEO office where Goldman resides. It has two massive metal pillars decorating around the room and framing the main door. Golman's office, is a large room with a singular window, there is not much else other than his desk, and the floor design is relatively, if not the same design from the Courtyard. It is revealed in House of the Dead 4 that the computer is concealed in the desk. The roof of the main office is where Goldman reveals his creation, the Emperor, in the House of the Dead 2; and the main office room itself is where the World, Goldman's last legacy, is fought.

Atrium CEO doors to Office.

CEO Office with Goldman.