A few quite different montages are shown below.
Image by Jason Snell from Mill Valley, CA (Eclipse montage) [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons.
Public domain image by The3munk (Own work) [CC0], via Wikimedia Commons.
Public domain mage by Nicolas von Kospoth (Triggerhappy) (own work (from different GNU FDL pictures)) [Public domain], via Wikimedia Commons.
Public domain image by Tavoanguiano (Own work) [Public domain], via Wikimedia Commons.