The Rum Mehmet Paşa Mosque was commissioned in 1471 by Mehmed Paşa, the vizier of Fatih Sultan Mehmet the Conqueror. There may have been a Byzantine temple on the site previously. This was the first large mosque built by the Ottomans in Üsküdar. There are two rooms on each sides of its winged hall.
The mosque houses two works by the famous calligraphers, Hattat Arif and Mehmed Sami. Tombstones, including that of Rumi Mehmed Paşa, can be found to the left of the courtyard.
The Tarihî Şifa Hamamı (Historical Medical Baths) were built nearby to generate income for the mosque. It is the oldest hamam in Üskudar and is still operational. Across from the men’s section there is a fountain that was built in 1729 and is named in honor of the vizier, Nevşehirli Damat İbrahim Paşa, who was killed in the Patrona Halil Uprising.
Mosque is a place of worship for Muslims. It comes from the Arabic word 'masjid' which literally means "a place for prostration". Mosques are also places where Muslims come together for different purposes such as education, social gatherings, public meetings, exhibitions, lectures etc. Although there is no specific requirement for mosques in terms of their architecture, one can see some common features inside and outside of many mosques such as minarets, domes, ablution areas, prayer niche (mihrab), pulpit (minbar) and so on.
Muslims are obliged to perform the ritual worship 5 times a day. They are not required to attend a mosque for each of these prayers however in order to interact with the community they are encouraged to pray in congregation. Friday noon is the only time in a week when Muslims must definitely join the congregational prayer in a mosque after which they can continue their work, education or other commitments.
Azan or the call for prayer is a vocal announcement that one can hear from minarets 5 times a day. The call to prayer is made live -even early in the morning- by a person called 'muazzin'. The muazzins are usually chosen from people with loud and beautiful voices and trained over years to make this announcement beautifully and invite people to worship.