Baptistry

 Noah's ark is the symbol of first baptism.  The shell represents the outpouring of the life of divine grace, while the holy Spirit is symbolized by a dove.

The large candle beside the font is the Easter candle, or Paschal candle. It is present to remind us of the light of Christ. 

The box beside the candle contains the blessed oils used for the sacraments of Baptism, Confirmation and Anointing of the Sick.