1. Istana Nurul Iman Palace, Bandar Seri Begawan, Brunei
The Istana Nurul Iman is the official residence of the Sultan of Brunei, Hassanal Bolkiah, and the seat of the Brunei government.
Estimated cost: $3.3 billion.
2.Antilia, Mumbai, India
Antila is the home of business tycoon Mukesh Ambani and is the most expensive private residence on the planet.
Estimated cost: $2.3 billion
3. Emirates Palace, Abu Dhabi
The Emirates Palace is a luxury five-star hotel in Abu Dhabi, United Arab Emirates operated by Kempinski and opened in November 2005.
Estimated cost: $3.8 billion
4. Palace of the Parliament in Bucharest, Romania
The Palace of the Parliament is the seat of the Parliament of Romania. It is located on Dealul Arsenalului in the national capital city of central Bucharest.
Estimated cost: $3.9 billion
5. One World Trade Center, New York, US
One World Trade Center is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. One WTC is the tallest building in the United States, the tallest building in the Western Hemisphere, and the seventh-tallest in the world.
Estimated cost: $4.1 billion
6. The Cosmopolitan, Las Vegas, US
The Cosmopolitan is a unique luxury resort hotel in the heart of The Las Vegas Strip.
Estimated cost: $4.4 billion
7. Apple Park, Cupertino, US
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Apple Park is the corporate headquarters of Apple Inc., located at One Apple Park Way in Cupertino, California, United States. It was opened to employees in April 2017, while construction was still underway. Its research and development facilities are occupied by more than 2,000 people.
Estimated cost: $5 billion.
8. Marina Bay Sands, Singapore
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Marina Bay Sands is an integrated resort fronting Marina Bay in Singapore, owned by the Las Vegas Sands corporation. At its opening in 2010, it was billed as the world’s most expensive standalone casino property at S$8 billion, including the land cost.
Estimated cost: $6.2 billion
9. Abraj Al Bait, Mecca, Saudi Arabia
The Abraj Al-Bait is a government-owned complex of seven skyscraper hotels in Mecca, Saudi Arabia. These towers are a part of the King Abdulaziz Endowment Project that aims to modernize the city in catering to its pilgrims.
Estimated cost: $16.0 billion
10. Masjid Al-Haram, Mecca, Saudi Arabia
The Great Mosque of Mecca, also known as the Haram Mosque, is a mosque that surrounds the Kaaba in the city of Mecca, Saudi Arabia.
Estimated cost: $100 billion
