Pietá (1498), Carrara marble, St. Peter’s Basilica, Rome–174 cm × 195 cm [68.5 in × 76.8 in] A public domain Wikigallery photo, published here
This is one of the most famous statues in the world.
It is a little less than life-size, carved out of a single block of marble. Michelangelo made it when he was only 23 for a French cardinal living in Rome. Now it is in St. Peter’s Basilica. It is the only statue Michelangelo ever put his name on.
The story goes that when it was first put on display he happened to hear some men from Milan telling each other it was the work of one of their sculptors. Michelangelo couldn’t allow that. He thought it was one of the best statues ever carved and he wanted credit for it. So that night he went into the church with his hammer and chisels and candles and carved his name in big letters on the Virgin.
It reads: Michaelangelus Bonarotus Florent(inus) Faciebat
He had to really squeeze those letters together to get them all in. If he had written FECIT (the Latin perfect tense) instead of FACIEBAT (imperfect tense) he would have had a little more room.