UPPER PART OF THE VISAGRA GATE. BUILT IN 1550] [Illustration: PLATE 62 TOWER IN THE CITY WALLS OF “THE SUBURB OF SAN ISIDORO,” NEAR THE NEW BRIDGE OF VISAGRA] [Illustration: PLATE 63 HYDRAULIC MACHINE AND REMAINS OF THE WALLS IN THE QUARTER OF THE CURTIDORES, NEAR THE RIVER WALLS OF THE SUBURB OF SAN ISIDORO] [Illustration: PLATE 64 ANCIENT GATE OF VISAGRA] [Illustration: PLATE 65 ANCIENT GATE OF VISAGRA. THE SIDE WHICH JOINS THE WALL AND THE SIDE DEFENSIVE TOWER] [Illustration: PLATE 66 ANCIENT GATE OF VISAGRA. DEFENSIVE AND SIDE TOWER] [Illustration: PLATE 67 ANCIENT GATE OF VISAGRA. REMAINS OF THE EASTERN FAÇADE] [Illustration: PLATE 68 DETAIL OF THE PRINCIPAL FAÇADE OF THE OLD GATE OF VISAGRA INTERIOR OF THE OLD GATE OF VISAGRA] [Illustration: PLATE 69 ANCIENT GATE OF VISAGRA] [Illustration: PLATE 70 THE TOWER CALLED “PUERTA BAJA DE LA HERRERIA,” NOW “GATE OF THE SUN”] [Illustration: PLATE 71 CASTLE OF SAN SERVANDO] [Illustration: PLATE 72 CASTLE OF SAN SERVANDO. ANCIENT ENTRANCE IN THE WEST FAÇADE CASTLE OF SAN SERVANDO. SOUTH-EAST ANGLE] [Illustration: PLATE 73 DOOR OF THE CASTLE IN SAN SERVANDO] [Illustration: PLATE 74 GATE OF VALMADRON] [Illustration: PLATE 75 GATE OF CAMBRÓN] [Illustration: PLATE 76 BAÑO DE LA CAVA] [Illustration: PLATE 77 ENTRANCE TO CAVA BATHS] [Illustration: PLATE 78 RUINS OF THE TOWER OF THE OLD BRIDGE OF BOATS, CALLED “BAÑO DE LA CAVA”] [Illustration: PLATE 79 DETAILS OF THE CONVENT OF SANTA FE. ELEVENTH CENTURY] [Illustration: PLATE 80 WEST PORTAL IN THE OLD HERMITAGE, NOW THE INN OF SANTA ANA, ON THE SISLA ROAD] [Illustration: PLATE 81 ALTAR-PIECE OF SAN JUSTO] [Illustration: PLATE 82 DETAIL OF THE CHURCH OF SAN JUSTO. FIFTEENTH CENTURY] [Illustration: PLATE 83 DETAIL OF THE CHAPEL OF SANTOS JUSTO AND PASTOR] [Illustration: PLATE 84 EFFIGIES OF JUAN GUAS, ARCHITECT OF SAN JUAN DE LOS REYES, AND OF HIS SON. CHAPEL OF CHRIST AT THE COLUMN, IN THE PARISH CHURCH OF SAN JUSTO] [Illustration: PLATE 85 EFFIGIES OF MARI ALVARES, WIFE OF JUAN GUAS, AND OF HER DAUGHTER. CHAPEL OF CHRIST AT THE COLUMN, IN THE PARISH CHURCH OF SAN JUSTO] [Illustration: PLATE 86 MOSQUE OF THE TORNERIAS. EXTERIOR OF THE SOUTH FAÇADE, SOUTH-WEST ANGLE] [Illustration: PLATE 87 INTERIOR OF THE MOSQUE DE LAS TORNERIAS] [Illustration: PLATE 88 ARCH OF THE “KIBLÁH” IN THE MOSQUE DE LAS TORNERIAS] [Illustration: PLATE 89 MOSQUE OF THE TORNERIAS. TREFOIL ARCHED WINDOW MOSQUE OF THE TORNERIAS. HORSE-SHOE WINDOW] [Illustration: PLATE 90 MOSQUE OF THE TORNERIAS. ARCHED WINDOW MOSQUE OF THE TORNERIAS. RECTANGULAR WINDOW] [Illustration: PLATE 91 MOSQUE DE LAS TORNERIAS] [Illustration: PLATE 92 MOSQUE OF THE TORNERIAS, BUILT OVER ROMAN REMAINS] [Illustration: PLATE 93 SUPPOSED ELEVATION OF THE MOSQUE OF BIB-AL-MARDÓM] [Illustration: PLATE 94 SUPPOSED PLAN OF THE MOSQUE OF BIB-AL-MARDÓM] [Illustration: PLATE 95