0 a room in a building or ship from where you can see or watch something:
There's an observation lounge that looks out over the lovely sweep of Broadford Bay.
The observation lounge - 150ft above the water at the ship's stern - is reached by a remarkable moving walkway.
From the observation lounge on the top floor of NEC's headquarters in Tokyo, executives have a good view of the HQs of two of their key customers.
Every ship features Scandinavian-style interior design, an observation lounge, and a restaurant with panoramic windows.
From there a short staircase went up to the observation lounge.
