What should visitors know before entering active mosques in Istanbul, including Eyüp Sultan and Kariye?

When entering an active mosque in Istanbul, treat it as a place of worship rather than only a cultural attraction and follow its religious etiquette.

For Kariye, also known as Chora, check prayer times and visitor access separately; travelers specifically ask whether its schedule matches that of other mosques.

Eyüp Sultan is one of Istanbul’s most revered mosques. It contains revered relics, may host local ceremonies such as weddings and funerals, and the surrounding area has shops by Turkish designers.