Newcastle City Council has voted to demolish Queen's Wharf Tower next year, ending 30 years of "lewd jokes" over the landmark's unfortunate shape.

The circular observation tower will remain open for six months to allow residents a final chance to climb its 180 steps and enjoy the view.

The sun sets on Newcastle's Queens Wharf Tower, which will be demolished in 2018.

But in the middle of next year it will be dismantled, much to the relief of the council's interim chief executive officer, Jeremy Bath.

"There really is no other way to describe the Queen's Wharf Tower other than as an embarrassment to the city," Mr Bath said.