Merkez, Kalenderhane Cd. No:12, 34050 Eyüpsultan/İstanbul, Türkiye
This tomb, in the Eyüp district of Istanbul, belongs to Abu Ayyub Ansari (رضي الله عنه) who was a close companion of the Prophet (ﷺ). He died around 670 CE.
Featured image: https://islamicana.com/2012/07/25/the-sahaba-of-istanbul-1/