At 127 metres (417 ft), the Glasgow Tower is currently the tallest tower in Scotland, and since late 2015 following the demolition of both the Red Road Flats and the Bluevale and Whitevale Towers the structure is now the tallest in all of Glasgow.

It holds a Guinness World Record for being the tallest tower in the world in which the whole structure is capable of rotating 360 degrees. The whole structure rests upon a 65-centimetre-diameter (26 in) thrust bearing, and is connected to its foundations by two concentric rings and shock absorbers. The thrust bearing itself rests in a 15-metre-deep (49 ft) caisson. This is to allow the building to rotate under computer control to face into the wind. The tower has two lifts each with a 12-person capacity, but for reasons of comfort, this is normally limited to 6 guests plus a single member of staff. There is also an emergency staircase, comprising 523 stairs from the Cabin level to the Podium.

More Info: en.wikipedia.org