ventilation tower for the tunnel running under strahov stadium prague, czech republic

1979-1990 abandoned architecture attraction beautiful blue bridge building built city cityscape cloud concrete construction cooler cooling czech deserted downtown engineering equipment glass historic history horizon hub infrastructure landmark landscape language memorial modern monument obelisk people prague praha republic running sea sky skyline skyscraper square stadion stadium strahov strahovského summer symbol tall technical technology temperature tourism touristic tower transportation travel tunel tunelu tunnel ventilation vibes větrací věže water wind windows