Liseberg tower, Drop ride in Liseberg amusement park, Göteborg, Sweden

Liseberg tower is a 116-metre structure in the Liseberg amusement park in Göteborg, built by the Austrian firm Waagner Biro AG. Its narrower section below the crown has a diameter of 3.1 metres. Since 2011 it has housed the Atmosfear free-fall ride, whose top reaches 146 metres above sea level.

The 116-metre tower, built by Austrian firm Waagner Biro AG, opened in 1990 with a 47-tonne glass cabin outside the shaft and a 52-tonne counterweight inside; it was first called UFO 23 and renamed Lisebergstornet in 1991. The last cabin ride ran on 30 May 2010, and the free-fall ride Atmosfear opened in April 2011. An earlier Liseberg tower, built in 1927 on the foundations of the 1923 cable-car line, burned down in 1938.

Each winter since 24 November 2000 the tower is wrapped in 3.2 km of light strings with 160,000 bulbs weighing 2 tonnes, turning it into a giant Christmas tree visible across much of Göteborg. A 300 kg LED star crowns the top.

Atmosfear riders are lifted in a glass cabin fixed to the outside of the tower, counterweighted by 52 tonnes inside the shaft; the cabin holds up to 65 passengers. The drop starts from 146 metres above sea level. The tower stands inside Liseberg, and the Christmas light display is lit daily in the morning and evening.

The tower's top reaches 146 metres above sea level, and its narrower section below the crown measures 3.1 metres in diameter. Since 24 November 2000, hundreds of metres of light strings have turned it into a giant Christmas tree each winter: 3.2 kilometres of lights, 160,000 bulbs and a 300-kilogram star.