The ornamental design for an architecturalfixture, as shown and described.
FIG. 1 is a bottom, front, right perspective view of an architectural fixture, embodying the invention;
FIG. 2 is a bottom, rear, left perspective view of the architectural fixture of FIG. 1, from a different angle than seen in FIG. 1 in order to show more detail;
FIG. 3 is a front elevation view of the architectural fixture of FIG. 1;
FIG. 4 is a rear elevation view of the architectural fixture of FIG. 1;
FIG. 5 is a left side view of the architectural fixture of FIG. 1;
FIG. 6 is a right side view of the architectural fixture of FIG. 1;
FIG. 7 is a bottom plan view of the architectural fixture of FIG. 1; and,
FIG. 8 is top plan view of the architectural fixture of FIG. 1.
The broken lines in the accompanying figures depict portions of the architectural fixture that form no part of the claimed design.