I then used the two spline that was created in the previous steps in a Sweep nurb object to create the basic Labyrinth. I then convert the sweep nurb object to a polygon object and assign texture domain to the Labyrinth.
I open a new doc and created the Arch or Gate and some columns that will be composed with the labyrinth for visual interest. I use Box extrude. Then bevel the inner corner to make the arch.