Mausoleum of Halicarnassus

The Mausoleum at Halicarnassus or Tomb of Mausolus was a tomb built between 353 and 350 BC in Halicarnassus for Mausolus, an Anatolian from Caria and a satrap in the Achaemenid Empire, and his sister-wife Artemisia II of Caria. The structure was designed by the Greek architects Satyros and Pythius of Priene. Its elevated tomb structure is derived from the tombs of neighbouring Lycia, a territory Mausolus had invaded and annexed c. 360 BC, such as the Nereid Monument.The Mausoleum was approximately 45 m in height, and the four sides were adorned with sculptural reliefs, each created by one of four Greek sculptors: Leochares, Bryaxis, Scopas of Paros, and Timotheus.

Source: Wikipedia