The demolition of a tower near downtown Dallas didn’t go quite as planned.

As the former Affiliated Computer Services building was imploded with explosives on Sunday morning, the core of the 11-story tower stubbornly remained standing, leaning to one side.

“The building fell the way it was supposed to fall,” said Josh Stevens, a project manager at Lloyd D. Nabors Demolition. “It happened to stop right there.”

Video of the building’s collapse immediately went viral and people began calling the structure the “Leaning Tower of Dallas.”

“Who needs Pisa? We have the Leaning Tower of Dallas,’’ one Twitter user wrote, sharing a photo of the city’s newest landmark.