I did multiple observing runs on the Swiss telescope Euler, situated in the ESO facility of La Silla in Chile.

Euler is a 1.2m diameter telescope. It is equipped with 3 instruments, in order of use: CORALIE, EulerCam and PISCO. CORALIE is an echelle-spectrograph able to measure radial velocities to an order of tens of metres per second, and his mainly used for that purpose, to detect or follow-up exoplanets candidates. EulerCam is, as its name hint at, a camera, used for transit or galaxy observation. PISCO is a second smaller camera, able to operate in parallel to CORALIE, on the contrary of EulerCam. You can find more about the everyday life of an astronomers in my PlanetS logbook article written during one of my runs. In the meantime, here are a couple of additional pictures of this very beautiful place.

I was also lucky enough during one of my travels, to visit ALMA, a radio-observatory northern in Chile, with a collection of antennas above 5000m altitude!