Basilica di San Marco?

• Michelangelo painted its ceiling
  The ornate Basilica di San Marco, consecrated in 1094, is perhaps the most recognizable Venetian landmark.
• Pope John Paul II was injured here in 1982
  The ornate Basilica di San Marco, consecrated in 1094, is perhaps the most recognizable Venetian landmark.
• site of public hangings in medieval times
  The ornate Basilica di San Marco, consecrated in 1094, is perhaps the most recognizable Venetian landmark.
• Venice's most popular tourist destination
  The ornate Basilica di San Marco, consecrated in 1094, is perhaps the most recognizable Venetian landmark.