The World's Largest Hotel

I didn't realize this... and didn't even believe it when I was told... but the world's largest hotel is The Ambassador in Pattaya/Jomtien with 5,100 rooms (although their website says they only have 4,200).

I figured it would have been a hotel in Las Vegas, and I was close, as 17 of the top 20 largest hotels in the world are in Las Vegas.

My favorite dark-horse entry would be the never-completed Ryugyong Hotel in North Korea, coming in at 1100 feet, 105 stories tall... but is forever to be unoccupied because of bankruptcy and poor construction materials, will eventually crash to the ground.