tán​chǎng

altar site

坛场 壇場 tán​chǎng
altar site
(literary) an outdoor area with a raised platform used in ancient times for religious sacrifices, alliance ceremonies, or appointing generals
mandala
a place where monks preach or practice Buddhist rites; also used for the physical layout of a mandala
political arena
(literary) the stage or world of politics; the political arena