PHILOXENON; this Word, by its Derivation from the _Greek_, signifies a publick Place of Entertainment for Travellers, and Strangers. The _Turks_ at present call these Places _Caravansera’s_, 161 PILLAR of _Arcadius_; this is the same Pillar, which is called the Historical Pillar; and which is Represented among the Cuts which I have added to this Book: It is therefore called the Historical Pillar; because it Represents the Actions and Triumphs of that Emperor. It is a plain Marble Column, 147 Foot in Height; work’d in _Basso Relievo_, 250 See _Tournefort_. PILLAR of MARCIAN; this Pillar is only mention’d by my Author; but since his Time has been discover’d in a private Garden at _Constantinople_, by Sir _G. Wheler_. The Pillar is made of _Granate_, and is thought to have been the Urn, where that Emperor’s Heart was buried, 256 See the same Author. PILLARS; Of _Constantine_, 156 _Corinthian_, very large, 137 Pillars in the _Hippodrom_, 110, 111, 112 Of _Justinian_, 129 _Porphyry_ Pillar, 172 See also the Cuts. Pillars in the _Senate-House_, 131 Of _Sophia_, 120 Of _Theodosius_, 129 Of _Valentinian_, 256 PLINTH; in Architecture it is taken for that square Member, which makes the Foundation of the Base of the Pillar, 113 PORTICO’S; these were Buildings of curious work, added to publick Structures whether Sacred or Civil. PORTICO, Of the Church of the Apostles, 221 Imperial _Portico_, where sealed, 150 Other _Portico’s_, full of Statues, 151 _Portico_, called _Sigma_, 221 PRYTANEUM; this was a stately Building, where those who had deserv’d well of the Government, were handsomely maintain’d at the publick Charge. There was such a Structure at _Athens_, for the same purpose, 169 PYRAMIDICAL Engine; its Use and Contrivance, 197 S. SCOTIA; this is a Member of Architecture hollow’d, or fluted as a Demi-Channel. It is particularly us’d in the _Bases_, where it is plac’d between the _Tore_, and the _Astragals_, 113 SENATE-HOUSE; built by _Constantine_, 132 How adorn’d, 182 SERAGLIO, or the Imperial Palace; a Description of it, 37, 38, 39, 40, 41 Where situate, 51 Its Extent, 52 SHAFT of a Pillar is the Body of it, 111 STADIA; these were Places, in the Form of _Circo’s_, for running of Men and Horses, 136