Madona Radio Towers - Credit: Wikimedia Commons
The Madona Radio Towers ( "Madona Radio Towers") were two wooden Latvian radio towers in the town of Madona that were constructed and finished in the year 1932. The Madona radio towers were used as means of communication from 1932, the year the towers were constructed, until 1944, when it was destroyed by the invading German occupants during World War II. These two towers were also the tallest structures ever built of wood in Latvia and also the tallest wooden towers ever built with triangular cross section. The towers' antenna measured 116 metres above sea level. In addition, the tower had neither a roof nor floors. Read more on Wikipedia
Source: en.wikipedia.org