The Colossi of Memnon are "two large stone statues of the Pharaoh Amenhotep III" that have stood on the west bank of the Nile at Luxor since about 1350 BC. According to Wikipedia, each rises about 18 meters and weighs "an estimated 720 tons."
In 27 BC an earthquake shattered the northern statue, "collapsing it from the waist up and cracking the lower half," after which it "was then reputed to 'sing' on various occasions — always within an hour or two of sunrise, usually right at dawn." Ancient tourists came to hear it. The Greek geographer Strabo, who heard the sound in 20 BCE, said it sounded "like a blow"; Pausanias compared it to "the string of a lyre" breaking.
The Greeks tied the statue to Memnon, a hero of the Trojan War and "son of Eos, the goddess of dawn." The likely natural cause was "rising temperatures and the evaporation of dew inside the porous rock." The singing stopped after Roman engineers rebuilt the upper tiers; "the last recorded reliable mention of the sound dates from 196."
