Dear @Claudia Mazo.

Thanks for your reply.

Vyacheslav.

I find the Whole Slide Imaging Repository, by the Digital Pathology association a great place to find links to different databases: 

https://digitalpathologyassociation.org/whole-slide-imaging-repository

You may also want to checkout openslide and the aperio software, and Juan Rosai's collection

http://www.rosaicollection.org/index.cfm

Hope this helps

 Thank you, dear António.

Dear  Vyacheslav, look at the links:

http://library.med.utah.edu/WebPath/webpath.html

http://www.pathologyoutlines.com

Best,

Natalia

Thank you, dear Natalia.

Hello!

You can visit The Human Protein Atlas portal:

http://www.proteinatlas.org/

The Human Protein Atlas portal is a publicly available database with millions of high-resolution images showing the spatial distribution of proteins in 44 different normal human tissues and 20 different cancer types, as well as 46 different human cell lines.

Yo can try the Dictionary for Normal tissue.

Hope this help you. Best regards

Roberto

http://www.proteinatlas.org/

Thank you, dear Roberto.

Dear Vyacheslav, look at the link

https://sites.google.com/site/aacruzr/image-datasets

Thank you, dear Maurizio.

http://www.lab.anhb.uwa.edu.au/mb140/default.htm

http://www.histologyguide.org/index.html

http://pathorama.ch/

Thank you, dear Gudrun Lang.

Maybe in the Smithsonian Institute

1) The Cancer Digital Slide Archive is a great resource that provides access to The Cancer Genome Atlas (TCGA) whole-slide images. These images are linked with clinical descriptions and molecular data. 

http://cancer.digitalslidearchive.net/

Reported in: http://jamia.oxfordjournals.org/content/20/6/1091

2) Another extensive collection of whole-slide histology and cytology images: vslides

http://pathorama.ch/vslides/index.html

I am actually the developer of the CDSA;  This site has pathology images, as well as clinical metadata.  I will be releasing a new version in the next couple of weeks that has additional capabilities.... so stay tuned.

Dear Roman.

Thank you for the interesting links.

Dear David.

It is very interesting.

You can specify the link.

You can have a look here at this histology atlas:

http://www.histoatlas.de

Best regards

Michael

Thank you, dear Michael.

The American Society of Cytopathology has a great online atlas:

https://bethesda.soc.wisc.edu/

Thank you, dear Rachel.

Suggest Histology World: http://www.histology-world.com/

Thank you, dear @Ann Celestine.

Dear Vyacheslav, look at the link:

http://biscar.univalle.edu.co/?page_id=1003

Regards

Dear @Claudia Mazo.

Thanks for your reply.

Vyacheslav.