Question: John Still was a British archaeologist known for his discoveries at an ancient rock fortress located in what country?
Related documents: [0]  [DOC] Sigiriya or Sinhagiri ("Lion Rock" Sinhalese: සීගිරිය , Tamil: சிகிரியா , pronounced see-gi-ri-yə) is an ancient rock fortress located in the northern Matale District near the town of Dambulla in the Central Province, Sri Lanka. The name refers to a site of historical and archaeological significance that is dominated by a massive column of rock nearly 200 m high. According to the ancient Sri Lankan chronicle the Culavamsa, this site was selected by King Kasyapa (477 – 495 CE) for his new capital. He built his palace on the top of this rock and decorated its sides with colourful frescoes. On a small plateau about halfway up the side of this rock he built a gateway in the form of an enormous lion. The name of this place is derived from this structure —Sīhāgiri, the Lion Rock. The capital and the royal palace was abandoned after the king's death. It was used as a Buddhist monastery until the 14th century. [END] 
[1]  [DOC] John Still (1880–1941) was a British archaeologist and author, known for his discoveries at Sigiriya and his book "The Jungle Tide". [END] 
Answer: 
Sri Lanka
Sri Lanka