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Review Highlights
Very different mosque from other places of worship in Turkey

The underground mosque (Yeralti Camii) is conveniently located in Karakoy, only a minute's walk... read more

Reviewed 10 November 2017
Murat B
Istanbul, Turkey
İnteresting Mosque

Located very close to Karaköy pier this very small mosque has very interesting architecture and... read more

Reviewed 12 July 2015
Istanbul, Turkey
via mobile
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  • Excellent23%
  • Very good59%
  • Average18%
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“dungeon”(2 reviews)
“soldiers”(2 reviews)
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Kemankes Cad. | Karakoy, Istanbul, Turkey
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1 - 10 of 12 reviews
Reviewed 1 week ago via mobile

Underground mosque said to contain the tombs of 3 of Prophet Muhammad's companions. Not much to see architecturally, but the story of the 3 companions is fascinating. Highly recommend a local guide to fill you in on the story.

Date of experience: January 2019
Thank Marco_Battuta
Reviewed 10 November 2017

The underground mosque (Yeralti Camii) is conveniently located in Karakoy, only a minute's walk from the Kadikoy ferry station or 15 minutes from the Galata Bridge. It has no dome or minarets, which gives it a unique look. One could easily walk past it, as...More

Date of experience: November 2017
Thank Murat B
Reviewed 16 September 2017

Legend has it that the 3 people buried here are sahabi with an interesting backstory... I'll let the locals fill you in as it's better that way. Well worth a visit, however not much to see from an architectural point of view.

Date of experience: July 2017
Thank Hint_of_Pepper
Reviewed 12 June 2016 via mobile

It was a gem in a very crowded area , first of all it is very difficult to find this place, it is in karakoy area. This mosque is built underground and has shrines of companions of prophet muhammad ( p.b.u.h ).

Date of experience: April 2016
1  Thank Nazia S
Reviewed 23 March 2016 via mobile

We visited this mosque just to see the shrines of Sahaba and pray for them. The mosque itself is not an easy one to find, but use TripAdvisor map and ask someone when you are nearby. Many people seem to know of its location.

Date of experience: March 2016
Thank zahoorch
Reviewed 1 March 2016

There aren't too many underground mosques in the world, let along Istanbul and this one worths a visit even just for this reason. In fact, this used to be dungeon for years starting from the Byzantine period. Then it was used as a water reservoir....More

Date of experience: February 2016
2  Thank TubaKoseogluOkcu
Reviewed 9 October 2015

If you are exploring Karikoy, this is worth a look. The mosque is in the foundation of the old castle from the period of European occupation of this area. The pillars are massive but plastered and painted white. Two Muslim martyrs are entombed here.

Date of experience: October 2015
1  Thank Travelibrarian
Reviewed 12 July 2015 via mobile

Located very close to Karaköy pier this very small mosque has very interesting architecture and worth to visit it.Recommended.

Date of experience: July 2015
1  Thank junior1907
Reviewed 8 April 2015 via mobile

Underground mosque that not easy to find but worth the effort. 5 minute walking from karakoy tram station

Date of experience: April 2015
1  Thank Jamesdaud
Reviewed 18 August 2014

It has a wonderful architecture and its really interesting. It should be added to city tours. But they should take better care of it.

Date of experience: July 2014
2  Thank HaticeNurK
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Sitting pretty with an age-old air about it, Karakoy
is situated on the European side of the Bosphorus at
the mouth of the Golden Horn. Perhaps the city’s most
historically significant area, it’s currently one of
the most happening parts of town as well. Here street
vendors and alfresco fish restaurants line the banks
of the Horn where the views of major attractions
across the water rival Karakoy’s own key attractions,
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