Bolt Tower, Observation tower in Dolní Vítkovice, Czech Republic

The Bolt Tower is a 25-metre glass-and-steel extension on top of blast furnace no. 1 in Dolní Vítkovice, Ostrava, designed by Josef Pleskot. A spiral walkway winds around a central glass tube housing a café and club, rising to 77.7 metres above ground, the city's highest point.

The glass extension by architect Josef Pleskot was added in 2015 to blast furnace no. 1 of the Vítkovice ironworks, part of the Dolní Vítkovice revitalisation, with funding from the European Regional Development Fund. In October 2019 the first two stars of the Amber Stairway of Fame were unveiled on its staircase, for singer Marie Rottrová and photographer Jindřich Štreit; two living artists from beyond the Moravian-Silesian region are added each year.

The name came from a public competition: "bolt" describes the screw-like shape of the glass extension and also refers to Jamaican sprinter Usain Bolt, a regular at Ostrava's Golden Spike meeting, who christened the tower shortly after it opened. Since October 2019, two stars of the Amber Stairway of Fame are unveiled on the staircase each year, the first for singer Marie Rottrová and photographer Jindřich Štreit.

The spiral walkway wraps around the glass tube housing the café and club, climbing to 77 metres above ground. The structure sits on the intact blast furnace no. 1, so the route passes the preserved industrial parts. The tower is the highest point in Ostrava, and the open walkway is exposed to wind and rain.

The name came from a public competition: "bolt" describes the screw-like shape of the glass extension and also refers to sprinter Usain Bolt, who regularly ran at Ostrava's Golden Spike meeting and christened the tower himself shortly after it opened.