Wax Vat (McKeldin Square) is a 4' x 4 ' steel table with a tray of wax. Underneath the steel vat is a pot of heated water. The steam melts the wax directly above the pot while the rest of the wax remains solid.
The circle of melted wax corresponds to the map on the wall which shows the area of disputed public space in downtown Baltimore during the Occupy Baltimore protests.
The other project (lower right) is a portable water pool. A piece of roofing rubber sinks into the basement stairwell and holds water. The rubber piece is transportable and could be put in a hole in the ground, a hole in the floor, or supported by rocks like in the arrangement of a fire pit.