1. Crystal Cave (Cueva de los Cristales) is located in the shaft complex Naica, in the Mexican desert of Chiahua at a depth of 300 meters.

 Historically, the first graph on the pavement appeared in Italy during the XIV century, when self-taught artist moved from town to town entertaining people of different images of religious subjects directly to the medieval squares. Today the technique of three-dimensional image plane and at the same time, based on the distortion and perspective and is widely used for advertising purposes, causing us to pay attention to the most famous artists around the world working in this genre. Edgar Mueller  , 44, Edgar Müller ( Edgar Mueller) was born and lives in Germany. In 25 Edgar realized that he wanted to devote his life to Street-Art. Since illusory figures on the pavement - this is for the artist and hobby and profession, and a way of earning a living. Edgar Mueller draws its 3D graphics and oil and spray paint. The area of his paintings up to 400 m2 (almost the area of a basketball court). Creating a masterpiece of art is 3D-artist at an average of 5 days.  Ice Age

 I do not try, but they say if you stick a lightbulb in his mouth, then pull it is not possible. No need to go now and try it. 
This guide for those who got into that situation. But do not hurt just to look, to know how to help someone. 

Although America's Yellowstone was the world's first national park, Canada was the first country to create an agency specifically devoted to national park creation, management and preservation. Parks Canada celebrates its 100th birthday this year, and in a century of park stewardship it has safeguarded some of the world's most famous landscapes and icons, including the Prince of Wales Hotel in Alberta's Waterton Lakes National Park. Parks Canada's scope includes 10 World Heritage Sites and four UNESCO Biosphere Reserves, ranging from remote marvels to easily accessible human playgrounds. Fourteen of our favourites follow.