Catholic Encyclopedia: Baptistery - The separate building in which the sacrament of baptism was once solemnly administered, or that portion of the church-edifice later set apart for the same purpose.
The Early Christian Baptisteries of Rome - The Swedish Institute of Classical Studies in Rome provides an illustrated introduction to the type and its function, and information on the remains of a baptistery belonging to the church of San Lorenzo in Lucina.
LacusCurtius: Roman Fountains - Article from William Smith's Dictionary of Greek and Roman Antiquities (1875), illustrated with three woodcuts.
National Wells Index - Aims to catalogue, research and preserve the surviving holy wells of Britain. Includes an outline history of hydromancy and gallery of holy wells.
The Spring House - Al Durtschi describes the small, enclosed one room buildings used in the US before the days of refrigeration to keep food cool.
