Germany, hamburg, pegelturm clock tower at dusk with elbphilharmonie in background
Picture of water level gauge pillar in the dam
Wieringen, the netherlands. june 2017. an old measuring house of the rijkswaterstaat.
Industrial gas storage tank. lng or liquefied natural gas storage tank. spherical gas tank.
Rooster weather vane on top of a cupola with a red roof pointing to the direction of the wind
water gauge by river against sky
A gauge pressure in the pipeline,a wall in the background