The ornamental design for a building, as shown and described.
FIG. 1 is a left front perspective view of a building, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a right front perspective thereof;
FIG. 4 is a right view thereof;
FIG. 5 is a right rear perspective view thereof;
FIG. 6 is a rear view thereof;
FIG. 7 is a left rear perspective view thereof; and,
FIG. 8 is a left view thereof.
The claimed design represents multiple substantially non-planar quadrilateral sections forming a building exterior. The top edge of each section is in rotational relationship to each respective bottom edge.
The dash-dash lines in the figures show features that form no part of the claimed design.