J P: If you look carefully the basement is covered by a steel shield, the wall of "brick" is actually faux and the windows are fake. Look at number's 56 & 60. It's an evacuation tunnel constructed by MTA.
108 Wyckoff St (btwn Smith & Hoyt Sts.), Brooklyn, NY
Public Art · Boerum Hill · 1 tip
J P: The entire bottom half, from the ground to windows, is covered in tiny plastic beads, colored tile, buttons, little toys and small circular mirrors. Owner is retired plastic arts professor.