The Colossi of Memnon, in Egypt. After an earthquake, the one on the right began to “sing” every morning at dawn, producing a light moaning sound probably related to rising temperatures and evaporating dew. In “The Sphinx,” Oscar Wilde wrote:

Still from his chair of porphyry gaunt Memnon strains his lidless eyes
Across the empty land, and cries each yellow morning unto thee.

Hearing the song brought good luck, so the colossi began to attract pilgrims from across the ancient world. It stopped in 199 when Emperor Septimius Severus tried to fix the damage. Nice going.