9The Odeon Tower Penthouse – Monaco

Estimated Price: $330 Million. Monaco is known for being a playground for the rich, and the Odeon Tower Penthouse exemplifies this perfectly.

Located in one of the tallest buildings in Europe, this luxurious penthouse spans several floors and includes a private swimming pool with a water slide, numerous terraces, and stunning views of the Mediterranean Sea. Its location in one of the most exclusive areas in the world significantly adds to its value.

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