CFHT at Sunset
Image taken from http://www.cfht.hawaii.edu/HawaiianStarlight/English/MaunaKea-Light.html
This picture was taken just before a night of observing - the dome of CFHT reflects the colours of the setting sun. A person on the catwalk gives you some idea of the scale - as large as the dome is, however, CFHT is actually one of the smaller telescopes on Mauna Kea.