As the saying goes, you need to spend money to make money, and nothing makes this clearer than construction projects. After all, be it constructing massive highways, creating large airports, or building tall high rises, it costs quite a bit of money to make the buildings and infrastructure that keep a country moving.

However, there are some projects that are becoming or have become so expensive that many question whether or not the costs are worth it. So today, pull out your cheque books and get ready to spend as we count down the Top 15 Most Expensive Construction Projects!