Indoor Sauna with Windows

FIG. 1 is a perspective view of an indoor sauna with windows; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a right side view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a top view thereof; and, FIG. 7 is a bottom view thereof. With regard to the drawings presented, the broken lines are intended to depict environmental structure and/or portions of the indoor sauna with windows that form no part of the claimed design.