You don't need an observation deck in Osaka because the view is unbeatable.

🏨 Conrad Osaka Hotel 👍 Fantastic views and luxurious rooms in Osaka. A perfect place to relax. ✔️ Conrad Osaka Hotel is located in the heart of the city and boasts stunning views. The rooms feature floor-to-ceiling windows that offer beautiful cityscapes of Osaka. The night view is particularly spectacular, providing a truly wonderful experience. The rooms are spacious and decorated in a modern style, with very comfortable bedding. The hotel's spa and fitness center are great for unwinding during your trip, especially the spa's jet bath and massage services. Staying at Conrad Osaka is a healing experience in itself.