The World's Most Expensive Buildings

The folks over at MSN Money have compiled an interesting list of the world's thirty most expensive buildings. The Saudis are well known for spending their petrodollars on everything from advanced military hardware to lavish construction projects and the kingdom is the sight of the world's most expensive building. Actually, it is the sight of the two most expensive buildings on the planet.

According to MSN Money, The Great Mosque of Mecca, also known as the Masjid al-Haram, is the most expensive building worldwide by a massive distance. Continual expansion projects added to its cost over the years and it is estimated that it has now cost $100 billion in today's money. The Abraj Al-Bait, also in Mecca, comes second with a cost of $16 billion. Singapore's spectacular Maina Bay Sands resort comes third with total costs of $6.2 billion.