Little Hagia Sophia, originally known as the Church of Saints Sergius and Bacchus, dates back to around 530 AD. Constructed during the same period as the grand Hagia Sophia, it stands out with its distinct architectural style and unique character.
In the early 1500s, this historic building was converted into a mosque. Today, visitors notice the beautiful decorations inside, including elegant marble details that reflect the artistry of Byzantine and Ottoman craftsmanship. Despite its age, the interior feels calm and inviting, offering a quieter setting compared to some of the larger, more crowded mosques in Istanbul.
Next to the mosque, the old madrasa welcomes people with a different kind of charm. This space now hosts craft shops, where artisans display handmade items and traditional works. The combination of historical architecture and modern crafts adds another layer of interest to the Little Hagia Sophia’s surroundings.
Source - https://en.wikipedia.org/wiki/Little_Hagia_Sophia