Thanks to European Heritage Days in Prague I could explore underground spaces directly under Old Town Square. It is electrical collector in Prague. You can find here one of the most modern and technilcally best equipped collector networks in the world. Prague Municipal Authority invests more than 500 millions czech crowns annually into there constructions.
Short insight take only 15 minuts. You can enjoy full Prague Collector Tour if book a visit on www.kolektory.cz.