The ruins of the Maya city of Tikal in what is now northern Guatemala.
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Original image by szeke. Uploaded by Jan van der Crabben, published on 06 July 2012 under the following license: Creative Commons: Attribution. This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered, in terms of what others can do with your works licensed under Attribution.