Ukrainian T-shaped Radio telescope, second modification
The Ukrainian T-shaped Radio telescope, second modification (official abbreviation UTR-2) is the world's largest low-frequency radio telescope at decametre wavelengths. It was completed in 1972 near the village of Hrakovo (49°38′N 36°56′E), 15 km west-south-west from Shevchenkove, Ukraine.
Source: Wikipedia — Ukrainian T-shaped Radio telescope, second modification (CC BY-SA 4.0)