to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This formerly was a featured picture on Wikimedia Commons (Featured pictures) and was considered one of the finest images. See its nomination here.
Wikipedia
This formerly was a featured picture on the English language Wikipedia (Featured pictures) and was considered one of the finest images. See its nomination here. This is a featured picture on the Spanish language Wikipedia (Recursos destacados) and is considered one of the finest images. See its nomination here.
If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it.
If you have an image of better quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.