1. Carpet: Look under carpet. Grab a rock.
2. Champagne: Break one of the champagne flute with the rock. Get a sharp glass.
3. Security Camera: Pick up a earpiece.
4. Poster: Cut off a piece of the poster.
5. Globe: Insert the poster piece. Get a clue word: BOSNIA.
6. TV: Flip the channels. Compile the first letter of the cities against the channel number.
1B, 2A, 3S, 4O, 5I, 6N. Rearrange the letter. You will get: BOSNIA (143652).
7. Stethoscope: Pick up stethoscope on top of a bust statue. Combine with the earpiece you pickup earlier.
8. Computer: Enter passcode: 143652. Get a screw combination arrangement.
9. Safe: Use the stethoscope on the safe. Rearrange the screws as seen on the computer. Get the door key from the safe.