6Les Palais Bulles – Cannes, France
- Value: $390 million
Les Palais Bulles, or “The Bubble Palace,” is a unique home designed by Hungarian architect Antti Lovag in the 1970s. Situated near Cannes, this futuristic estate consists of interconnected bubble-like structures, resembling a series of orbs. The property covers 13,000 square feet and features a 500-seat outdoor amphitheater, multiple swimming pools, and lush gardens with stunning views of the Mediterranean. Owned by fashion designer Pierre Cardin, Les Palais Bulles is as much a piece of art as it is a residence.