Architecture, decoration and furnishing The exterior facade of the chapel is marked by twin towers surmounted by stainless steel crosses plated in 24-karat gold leaf, each measuring in height including the base. An copper statue of Saint Anthony crowns the facade, replacing an earlier pewter figure that was destroyed by lightning. The chapel's bells were cast by the
McShane Bell Foundry of
Baltimore and installed in 1891. They include two large bells, named St. Anthony and St. Francis, and a smaller bell named St. Clare. though historian Katherine Lukaszewicz has suggested that the relic treasury of the Spanish crown at
the Escorial may be larger. The collection preserves portions of the physical remains, clothing, and personal effects of various saints, many of which are housed in reliquaries of crystal, silver, and gold. Most of the chapel's pieces are vouched for by ecclesiastical authentication documents, the oldest of which is dated August 12, 1716. Behind the altar is a setting of reliquaries containing relics from each of the saints named in the
Roman Canon. Other relics include slivers of the
True Cross and particles of what is described as the clothing of the
Blessed Virgin Mary and
Saint Joseph. Some relics are visible only at close range, while others are kept out of public view, such as a small fragment of the
Last Supper table, which is housed within the
mensa of the
high altar. Among the chapel's most notable objects is a reliquary crafted in
Aachen in 1880 by August Witte. The piece, in the form of a monstrance, contains a particle of the True Cross at its center. Surrounding it are relics of
John the Baptist,
Mary Magdalene, St. Lawrence,
St. Dionysius,
St. Blaise, and St. Stephen, together with a fragment of the
winding sheet of Christ. The outer rim holds relics of St. Anthony,
St. Nicholas,
St. Agnes,
St. Barbara,
St. Sebastian,
St. Catherine,
St. Cecilia, and
St. Lambert. Silver medals depicting these saints are fixed to the reliquary's base, which is further ornamented with filigree and engraved decoration. The reliquary continues to be used during novena services in honor of St. Anthony of Padua, when it is presented for the blessing of the faithful. ==Chapel museum==