Lego artists can do amazing things, some are engaged in construction and some are involved in the design,

Hidden construction is a very impressive style of design
Here are some really good artists

 

Zedd - Lego Art Installation

 

This wall is made out of Lego 

 

Artist Puts His LEGO Art Inside Walls

 

Dante Dentoni, Compilation Lego Art

 

This is how it's done