"A Cathedral is the principal church of a diocese, and the Cathedral city is the seat of the bishop of the diocese, and his throne is placed in the Cathedral church, which is the parish church of the whole diocese. The distinction between Cathedral and collegiate churches consists principally in the see of the bishop being at the former. The governing body of a Cathedral is called the dean and chapter. The Cathedral of St. John the Divine (P. E.) in New York, will, when completed, be the most splendid structure of the kind on this continent."—(Charles Leonard-Stuart, 1911)

Cathedral of St. John the Divine

"A Cathedral is the principal church of a diocese, and the Cathedral city is the seat of the bishop…

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St. Louis.

Eolian Cross-bedding

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St.…

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St. Louis.

Eolian Cross-bedding

Eolian type of cross-bedding in ancient limestones, formed of uniform lime-sand grains south of St.…

The Pilaster Grotesque mask comes from a part of a capital pilaster of the tomb of Louis XII in St. Denis, France during the French Renaissance.

Pilaster Grotesque Mask

The Pilaster Grotesque mask comes from a part of a capital pilaster of the tomb of Louis XII in St.…

Cross section of Hagia Sophia in Istanbul (historically Constantinople). The Greek name Hagia Sophia means "Holy Wisdom." It is known as Ayasofya in Turkish.
<p>The building was originally constructed as a church between A.D. 532 and 537 on the orders of the Byzantine Emperor Justinian I. In 1453, Constantinople was conquered by the Ottoman Empire under Mehmed the Conqueror, who ordered the building be converted into a mosque. It was closed in 1931 and reopened as a museum in 1935. This important milestone in the history of architecture was the world's largest cathedral for nearly a thousand years. It also greatly influenced the design of Ottoman mosques, including the nearby Blue Mosque.

Hagia Sophia

Cross section of Hagia Sophia in Istanbul (historically Constantinople). The Greek name Hagia Sophia…

Color flag of Sao Tome and Principe. Three horizontal bands of green (top), yellow (double width), and green with two black five-pointed stars placed side by side in the center of the yellow band and a red isosceles triangle based on the hoist side; uses the popular pan-African colors of Ethiopia.

Flag of Sao Tome and Principe, 2009

Color flag of Sao Tome and Principe. Three horizontal bands of green (top), yellow (double width), and…

Black and white outline flag of Sao Tome and Principe. Three horizontal bands of green (top), yellow (double width), and green with two black five-pointed stars placed side by side in the center of the yellow band and a red isosceles triangle based on the hoist side; uses the popular pan-African colors of Ethiopia

Flag of Sao Tome and Principe, 2009

Black and white outline flag of Sao Tome and Principe. Three horizontal bands of green (top), yellow…

"Interior, St. Clare's, Liverpool." &mdash; The Encyclopedia Britannica, 1910

St. Clare's

"Interior, St. Clare's, Liverpool." — The Encyclopedia Britannica, 1910

The old Byzantine church, St. Martin's Church was the beloved church of the poor. It stood by the Cathedral of Cologne and represented the old Catholic city of the Rhine.

St. Martin's Church

The old Byzantine church, St. Martin's Church was the beloved church of the poor. It stood by the Cathedral…

"St. Saturnin at Toulouse." &mdash;D'Anvers, 1895

St. Saturnin

"St. Saturnin at Toulouse." —D'Anvers, 1895

An illustration of decorative letters St.

Decorative Letters St.

An illustration of decorative letters St.