Total disappointment.

Many residents of Humber Bay Shores are disappointed and frustrated today after a mysterious monument that appeared on the shores of Lake Ontario was sprayed with graffiti by culprits.

The monolith, which only appeared a couple of days ago, was gaining popularity and gaining followers on social media after recent media coverage.

Photos of the once-gleaming monolith, now posted online shows the monument  scarred with red graffiti and markings.

Area residents said the structure mysteriously appeared some time on December 31.

Photos show the picturesque 12-foot tall structure standing over the water’s edge, with the CN tower in the distance.

The monolith appears to be made of metal and is buried in the ground.

Humber Bay residents are proud and delighted after learning of the structure, with some calling it “rogue art” and others wondering if there is a higher form of life involved.

Many are disappointed that the structure was a target for graffiti by someone.

“We were just getting warmed up to this and this is what happens,” one woman said.

Monoliths, most made of metal, have been popping up around the world, with some disappearing just as fast as they appeared.

In the Utah desert, hundreds flocked to see the structure amid a global pandemic before it was removed by athletes worried about the damage to the landscape.

The structures have been found in Manitoba and British Columbia in Canada.