A Gustav Klimt portrait painting sold Tuesday for $236 million, a record for a modern art piece, at an auction where a solid gold, fully functional toilet satirizing the ultrarich also fetched $12.1 million.

The toilet, by Maurizio Cattelan — the provocative Italian artist known for taping a banana to a wall — went up for auction Tuesday evening at Sotheby's in New York.

The starting bid for the 101-kilogram (223-pound), 18-karat-gold work was about $10 million.

Cattelan has said the piece, titled “America, ” satirizes superwealth.

The toilet, which had been owned by an unnamed collector, was one of two that Cattelan created in 2016.

The other one was displayed in 2016 at New York's Guggenheim Museum, which pointedly offered to lend it to U.S. President Donald Trump when he asked to borrow a Van Gogh painting.

Then the piece was stolen while on display in England at Blenheim Palace, the country manor where Winston Churchill was born.

Two men were convicted in the toilet heist, but it's unclear what they did with the loo.

Investigators aren't privy to its whereabouts but believe it probably was broken up and melted down.

“America” was exhibited at Sotheby’s New York headquarters in the weeks leading up to the auction.