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The cathedral seen from Alter Markt (old market) historic square in the Altstadt (old town) in Koeln, Germany
Beautiful view of Tapajos river with clouds on the background in Alter do Chao, on the state of Para, Brazil. Alter do Chao is also known as the Amazon caribbean.
This is a photograph of a flower bouquet, and its appearance has been slightly altered artificially.
Light microscope Pigmentary of liver pathology. Abnormal alterations of cells and tissues. Haematoxylin and eosin staining technique for human tissue.
Alter do Chão stream during the Tapajós River flood period, state of Pará, Brazilian Amazon

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