FIG. 1 is a front perspective view of a building block with cap showing my new design;
FIG. 2 is an exploded front elevation view, the rear elevation, right side elevation and left side elevation being the same image thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is an exploded rear perspective view thereof;
FIG. 6 shows a rear perspective view of just the cap, shown separately for the ease of illustration, in an exemplary environment of use;
FIG. 7 shows a rear perspective view thereof, in another exemplary environment of use;
FIG. 8 shows a rear perspective thereof, in another exemplary environment of use;
FIG. 9 shows a rear perspective view thereof, in another exemplary environment of use;
FIG. 10 shows a rear perspective view thereof, in another exemplary environment of use;
FIG. 11 shows a rear perspective view thereof, in another exemplary environment of use;
FIG. 12 shows a rear perspective view thereof, in another exemplary environment of use;
FIG. 13 shows a rear perspective view thereof, in another exemplary environment of use; and,
FIG. 14 shows a rear perspective view thereof, in another exemplary environment of use.
The broken lines shown in FIG. 1 are included for the purposes of illustrating portions of the article which form no part of the claimed design. The broken lines in FIGS. 6-14 represent exemplary environment(s) in which the article resides and forms no part of the claimed design.