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Headstone. Captain Andrew Drake (1684–1743) sandstone gravestone from the Stelton Baptist Church in Edison, New Jersey. A headstone, tombstone, or gravestone is a stele or marker, usually stone, that is placed over a grave. It is traditional for burials in the Christian, Jewish, and Muslim religions, among others.
Cenotaph for Louis XVI and Marie Antoinette, Basilique Saint-Denis, France. A cenotaph is an empty tomb or a monument erected in honour of a person or group of people whose remains are elsewhere. It can also be the initial tomb for a person who has since been reinterred elsewhere.
Roman bronze dodecahedron found in Tongeren, Gallo-Roman Museum, Tongeren. A Roman dodecahedron or Gallo-Roman dodecahedron [1] [2] is a small hollow object made of copper alloy which has been cast into a regular dodecahedral shape: twelve flat pentagonal faces. Each face has a circular hole of varying diameter in the middle, the holes ...
Geology[edit] The Acropolis is a klippe consisting of two lithostratigraphic units: the Athens schist and the overlying Acropolis limestone. The Athens schist is a soft reddish rock dating from the late Cretaceous period. The original sediments were deposited in a river delta approximately 72 million years ago.
Hagia Sophia ( lit. ' Holy Wisdom '; Turkish: Ayasofya; Greek: Ἁγία Σοφία, romanized : Hagía Sofía; Latin: Sancta Sapientia ), officially the Hagia Sophia Grand Mosque (Turkish: Ayasofya-i Kebir Cami-i Şerifi ), [3] is a mosque and former church serving as a major cultural and historical site in Istanbul, Turkey. The last of three church buildings to be successively erected on the ...
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The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although fractions such as are commonly used to ...
