Ok, it's not real UFO, but has very similar shape. It is meteorological observatory on Snieżka (what means Snow White) mountain.
Author:Lovecz 16:05, 1 July 2006 (UTC)
The observatory was built in 1966-1974 from reinforced concrete, steel and aluminum. The construction was inspired by UFO and designed by Witold Lipiński and Waldemar Wawrzyniak. Observatory won an award on World Architecture Exhibition in Mexico city.
Author:Piaseq underCreative Commons Uznanie autorstwa – Na tych samych warunkach 3.0
Author; Honza Groh (Jagro) under Creative Commons Attribution-Share Alike 3.0 Unported
The highest disk - meteorological observatory - has the smallest diameter, 13 m
The middle disk - technical magazine with observatory equipment - 20 m diameter
The lower disk - restaurant with terrace, shop with souvenirs - 30 m diameter
Author: Wyksztalciochunder Creative Commons Attribution 3.0 Unported
Author: Wyksztalciochunder Creative Commons Attribution 3.0 Unported
In 2009 the walls on highest disk started to break. On 16.03 steel structure supporting the disk was damaged. The observatory had to be moved to the middle disk.
Author:Piaseq underCreative Commons Uznanie autorstwa – Na tych samych warunkach 3.0
More pictures of Sniezka can be found here http://fishki.net/comment.php?id=65280