Surreal M. C. Escher v Lego in Drawing v Sculpture

This project was carried out a few years ago by Andrew Lipson, he wanted to see if he could recreate Maurits Cornelis Escher's drawings using Lego bricks (1898-1972 famous for his impossible constructions drawings, like some of the ones seen here).  in a way, it is an easier process on paper, as it is easier to full the eye, than on a 3D structure.  To achieve the effect on the 3D model the bricks have to be arranged in a way that they look right, only from a specific angle.  At any other angle you would see pieces overhanging or the stretched construction of a particular part, see the waterfall side view.  Look at the details of the drawings and sculptures and you will see why they are impossible...

Waterfall.
Follow the the path of the water, all the way round.

Waterfall.

Waterfall. Side view, this is what is needed to create the effect.

Ascending and Descending.
Look at the people they look like they are going up all the time even though it is a closed loop.

Ascending and Descending.

Belvedere. Look at the columns.

Belvedere.

Relativity.

Relativity.

Balcony.

Balcony.