Lets have a look at some of these 'gay' treasures.
For paintings, of course there is the Sistine Chapel painted by Michelangelo, and the famous Ignudi. And also the Last Judgment.
One of the guide is Tony Adams, who used to be a Catholic priest. He said about that painting : ''And it's erotic art. It tells a spiritual story, but it doesn't deny the physical dimension." Quikky also organizes a tour in Milan, where you can see the Last Supper, by Leonardo Da Vinci. The tours are always given with extensive explanations linked to the 'hidden history' and private life of the artists, their models, or their lovers, and their art pieces of course.
In terms of sculptures observed during the tour, you can see the Apoxyomenos from Lysippus, who was a sculptor for Alexander the Great. Here with the fig leaf, which was added later on.
The busts from Hadrian, and from his lover Antinous.
The Laocoon and his sons. A famous and large sculpture, attributed to sculptors from the island of Rhodes. And a very old sculpture too, as it was discovered in 1505 in Rome.
St Sebastien, icon of many gays (see our previous posts on St Sebastien here).
And of course you can see many more sculptures, like angels, etc.
The Guardian article