Rozhledna Korunka, Steel observation tower on Červená hlína hill in Černolice, Czech Republic

Rozhledna Korunka is a 30-metre steel tower on the wooded summit of Červená hlína above the Berounka valley, at 467 m above sea level on the northern edge of Černolice. Its lattice shell of 16 rods forms two crossed hyperboloids tilted 7.5 degrees to the south, so the tower leans like a falling tower. A spiral staircase inside, wrapped in stainless-steel mesh, climbs 118 metal grate steps to a platform 20 m above the ground.

The Černolice council first considered a lookout on Červená hlína around 2010 and wrote the plan into its 2013 zoning plan. In 2016 the village agreed to buy the land on condition that the tower also serve tourists. Prague telecom firm Družstvo Eurosignal built it in 2021–2022, and it opened on 29 May 2022.

The name Korunka, suggested by a local resident, refers to the tower's top, which resembles a crown when seen from the Berounka valley. The tower doubles as a transmitter serving Dobřichovice and other Brdy villages, and the tourist section is run by the Černolice municipality.

The tower is accessible to most people, and the climb can be done at your own pace. It is advisable to wear comfortable shoes since the steps require some physical exertion.

The tower doubles as a telecommunications transmitter: Eurosignal, the Prague internet provider that paid the 10.5 million CZK construction cost, uses it to broadcast to Dobřichovice and other Brdy villages. The name Korunka was suggested by a local resident, after the crown-like top visible from the Berounka valley.