The Mausoleum at Halicarnassus.

   The Mausoleum at Halicarnassus, also in Asia Minor,derived its name 
   from King Mausolus of Caria. After his death in the middle of the 
   4th century BC, his queen, Artemisia, employed Greek architects to construct a superb 
   monument over his remains. It was a great rectangular pile of masonry, 
   surmounted by an Ionic colonnade supporting a rooflike pyramid. At the apex 
   stood a four-horse chariot in which were statues of the king and queen. So 
   famous was this structure that the word mausoleum came to be applied to any 
   monumental tomb. Some relics of the original Mausoleum are preserved in the 
   British Museum.

Notes on Halicarnassus :

Mausolus (4th century BC), king of Caria, whose wife Artemisia erected famous 
"mausoleum" at Halicarnassus to his memory.

Artemisia (4th century BC), queen of Halicarnassus, an ancient Greek city 
in  Asia Minor; built famous tomb for her husband, Mausolus.