If you love Mother Nature then you'll love the Tree Museum in Rapperswil-Jona, Switzerland. Two thousand trees make up the museum, with 22 different species among them.
The Tree Museum is also the headquarters of green landscape designer Enzo Enea's firm. Nothing says that you have a commitment to the environment like housing your company's headquarters in a tree museum. The Tree Museum opens June 14th, so check it out if you love trees.