The Most Expensive Construction Projects Known to Mankind

13. Gigafactory 1

The place is in Nevada, USA. Overall Expense: $1.31 Billion* Completed Year: 2020 Gigafactory 1, also known as Tesla Giga Nevada, is the head of Tesla's electric vehicle operation. This large facility is where the majority of the company's well-known lithium-ion batteries and other electrical components are produced. We are discussing the acquisition of an area of around 4.5 square miles.

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Wikimedia Commons/Smnt/Gigafactory 1 One day, Tesla's Nevada manufacturing will be completely powered by renewable energy sources, which will be a significant milestone in and of itself. If you're still having trouble picturing the size of this place, consider that over 7,000 people are employed there, and there are plans to hire several thousand more in the future.

14. The Royal Adelaide Hospital

Location: Australia's Adelaide Total Expense: $1.61 Billion* Completed Year: 2017 The 175-year-old Adelaide Hospital was to be replaced by the Royal Adelaide Hospital, but it accomplished much more than that. The state's most costly and largest hospital to date is South Australia's recently constructed state-owned facility, known as "the Rah."

Hospital Royal Adelaid ©Wikimedia Commons/Sandyx99 A little over $1.6 billion was spent on this joint venture between Hansen Yuncken and Leighton Contractors. But now that it was finished, the Royal Adelaide Hospital had adequate space for forty operating rooms, each spanning 700 square feet. Additionally, it will hire up to 6,000 workers. "The Rah" is intended to collect rainwater for later use and, in comparison, cut its greenhouse gas emissions by half.