The most expensive projects in the world

Al-Masjid al-Haram, Mecca, Saudi Arabia: The world's largest mosque, built in 638, is being expanded and is expected to be completed in 2020. The total area of ​​the mosque is 356,800 m2, has indoor and outdoor prayer areas, and cost $100 billion to build. It is also the most expensive building in the world.

Abraj Al Bait, Mecca, Saudi Arabia: This skyscraper complex is located right next to the Al-Masjid al-Haram mosque, with a construction cost of 15 billion USD, completed in 2012. The center of the complex has a hotel tower with the largest and tallest clock face in the world.

Resorts World Sentosa, Sentosa, Singapore: Costing $6.59 billion to build, this massive resort features two casinos, the world's largest marine aquarium, an amusement park and a water park.

Marina Bay Sands, Marina Bay, Singapore: This impressive hotel complex has three 55-story towers with a rooftop designed like a ship. Guests can take a dip in the rooftop infinity pool and enjoy panoramic city views from the $5.5 billion structure.

Cosmopolitan Hotel, Las Vegas, USA: This $3.9 billion project has two 184 m high towers, with 2,995 rooms, a casino, restaurants, spa, cinema...

Emirate Palace Resort, Abu Dhabi, United Arab Emirates: This 5-star resort is the second most expensive hotel in the world, with a construction cost of 3 billion USD. This structure has 114 domes 80 m high.

Wynn Resort, Las Vegas, USA: Considered one of the best hotels in the world, the Wynn resort cost $2.7 billion to build.

City of Dreams Resort, Macau, China: Costing $2.4 billion, this massive resort features a variety of attractions and 1,514 gaming machines.

Venetian Macao Resort, Macau, China: This is the 7th largest building in the world by floor area (980,000 m2), with a construction cost of 2.4 billion USD.

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