Apex City Quay Hotel & Spa in Dundee, Scotland

Think all eco-friendly hotels are in remote areas? Think again. Located in Scotland’s second most populated city, this 152-room property has sustainability down to a science.

Not only does the hotel only use eco-friendly chemicals, it purchases recycled furniture and accessories whenever possible, while paying careful attention to its energy consumption. Even more impressive—its Yu Spa has been named the first green spa in Scotland.