4. The Ritz Carlton Wolfsburg in Germany
Here’s something you probably weren’t expecting – a five-star hotel inside an automotive theme park! The Ritz Carlton Wolfsburg is possibly the world’s most unique luxury hotel. From your room, you can watch Volkswagens being born in the historic factory next door. But don’t let the industrial setting fool you – this place houses Aqua, one of Germany’s finest restaurants with three Michelin stars, and a stunning 100-foot floating pool that seems to defy gravity.