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.
Fountains, Springs and Lavoirs in Southern France: Bob Drake's overview and annotated photographs of historic local fountains and communal washing-places.
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 Conduit, Grantham: Photograph and brief description of the well head in the Market Place built in 1597 to supply fresh water to the town.
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.
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.