The UK's tallest sculpture arrived in Manchester on Sunday.
It will lean at a greater angle than the Leaning Tower of Pisa
The central core of the B of the Bang arrived at the City of Manchester Stadium, where it will commemorate the 2002 Commonwealth Games.
When completed, the 150 tonne steel sculpture will stand 56m tall and lean at an angle of 30 degrees.
It will be taller than the Angel of the North, in Gateshead, and lean at a greater angle than the Leaning Tower of Pisa, in Italy.
The sculpture was named after British sprinter Linford Christie's famous saying: "I'll be gone by the B
of the Bang."
It is made of 180 spikes meeting at the central core and was commissioned by urban regeneration company New East Manchester Limited to mark the Commonwealth Games.
Designed by Thomas Heatherwick Studios in London and built in Sheffield, it is due to be completed by September.
Mr Heatherwick said: "The welding work on this project so far has been immense.
"This is probably the most difficult design I have worked on. Two years on from our original concept it is quite overwhelming to see it arrive on site.
"As a completed structure I think it will be impressive but it is the ingenuity taken to construct and engineer it that is really outstanding."