FIG. 1 is a perspective view of a circular pizza box showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view;

FIG. 5 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 6 is a rear elevational view;

FIG. 7 is a top plan view of the circular pizza box in an open condition;

FIG. 8 is a perspective view of a second embodiment of a circular pizza box incorporating my new design;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a bottom plan view;

FIG. 12 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 13 is a rear elevational view;

FIG. 14 is a top plan view of the circular pizza box in an open condition;

FIG. 15 is a perspective view of a third embodiment of a circular pizza box incorporating my new design;

FIG. 16 is a top plan view thereof;

FIG. 17 is a front elevational view thereof;

FIG. 18 is a bottom plan view;

FIG. 19 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 20 is a rear elevational view;

FIG. 21 is a top plan view of the circular pizza box in an open condition;

FIG. 22 is a perspective view of a fourth embodiment of a circular pizza box incorporating my new design;

FIG. 23 is a top plan view thereof;

FIG. 24 is a front elevational view thereof;

FIG. 25 is a bottom plan view;

FIG. 26 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 27 is a rear elevational view;

FIG. 28 is a top plan view of the circular pizza box in an open condition;

FIG. 29 is a perspective view of a fifth embodiment of a circular pizza box incorporating my new design;

FIG. 30 is a top plan view thereof;

FIG. 31 is a front elevational view thereof;

FIG. 32 is a bottom plan view;

FIG. 33 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 34 is a rear elevational view thereof; and,

FIG. 35 is a top plan view of the circular pizza box in an open condition.