Jordan, Petra, The narrow slot canyon called the Siq leads to the ruins of the Nabataean city of Petra in the Petra Archeological Park is a Jordanian National Park and a UNESCO World Heritage Site. In...

England, East Sussex, View over the Pevensey Levels.

England, East Sussex, View over the Pevensey Levels.

Military, Equipment, Naval, Royal navy radar display showing HMS Shoreham moored in Shoreham harbour.

Media, Communications, Television, Infrared remote control unit.

Media, Communications, Television, Infrared remote control unit.

View over the deep gulleys exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock .TravelTourismHolidayVacationExploreRecreationLeisureSightseei...

Walled garden with irrigation channels.Ghadamis Gadames

Man constructing irrigation channels for cultivated plots.

Flock of protected birds flying over the channels of the Danube Delta Biosphere ReserveUNESCO heritage site