I am sure you look up to the sky every day and see the same old cloud formation – which may also include contrails and jet streams.
However, in this post I will show you some of the world’s rarest photographs (you can say it that way as these clouds don’t form every day and not everyone is lucky enough to photograph them).
Be sure to check the photographers out:

Lenticular cloud, Mt. Fuji, Japan – Source Unknown
Asperatus formation, Canterbury, New Zealand –wittap
Roll cloud hang glider, Queensland, Australia – Mark Watson
Mammatus over Quebec – Michel Filion
Shelf cloud, North Dakota – Michael Carlson – Photography
Nacreous clouds, McMurdo Station, Antarctica – Alan R. Light
Lenticulars, Mt. Rainier, Washington – Tim Thompson
Cumulonimbus, Nelson, BC – Robert Neufeld
Lenticular UFO, Patagonia – Source Unknown
Shelf cloud, Cape Cod, MA – Anthony Quintano
Altocumulus from the ISS – Cosmonaut Fyodor Yurchikhin and the Russian Space Agency Press
Mammatus, Manhattan – Skellig2008
Noctilucent clouds over the Tibetan Plateau – NASA Goddard Photo and Video
Morning glories, Queensland, Australia – Mick Petroff
Lenticular funnel, Palm Springs, CA – Florian
Mammatus storm, Norman, OK – Angelyn Hobson
Altocumulus, Layton, NJ – Nicholas_T
Mammatus, Salem, OR – happy1nva
Lenticular arcs, Seattle – brucedene
Cloud iridescence, Arizona – benafiaskys
Stratus clouds, Arenal Volcano, Costa Rica – REDFISH1223
Lenticular ribbon, Tarurua Range, New Zealand – Chris Picking
Noctilucent clouds, Viljandimaa, Estonia – Martin Koitmäe
Glories and vortices, Baja – NASA Goddard Photo and Video
Cumulonimbus, Beverley, England – l.bailey_beverley
Vortex cloud, Wallops Island, VA – NASA Langley Research Center (NASA-LaRC)