The top 10 casinos that have been renovated for the highest costs are:
1. The Venetian Resort Hotel Casino (Las Vegas, USA) – Renovation cost: $485 million
2. Resorts World Sentosa (Singapore) – Renovation cost: $450 million
3. Wynn Las Vegas (Las Vegas, USA) – Renovation cost: $425 million
4. MGM Grand Las Vegas (Las Vegas, USA) – Renovation cost: $380 million
5. Marina Bay Sands (Singapore) – Renovation cost: $360 million
6. Caesars Palace (Las Vegas, USA) – Renovation cost: $305 million
7. The Cosmopolitan of Las Vegas (Las Vegas, USA) – Renovation cost: $300 million
8. The Palazzo Resort Hotel Casino (Las Vegas, USA) – Renovation cost: $300 million
9. The Mirage (Las Vegas, USA) – Renovation cost: $250 million
10. The Bellagio (Las Vegas, USA) – Renovation cost: $245 million
Please note that these figures are approximate and subject to change based on current market conditions.