Where I've been
The Blue Lagoon, Iceland, is a geothermal spa. The outdoor bath remains 100-110°F year round. The natural ingredients of the warm water: mineral salts, white silica and blue green algae. These ingredients clean exfoliate, nourish & soften the skin while relaxing the body. I wanna go!
Neuschwanstein Castle- few things you should really know about it besides the Disney aspect. It means 'new swan stone' in German and isn't too far from the original. And ... the guy that built it (King Ludwig II) was quite the character. Look him up ... great place to visit :)