Gasim Bey Caravanserai

Two-storeyed caravanserai (Azerbaijani: İkimərtəbəli karvansara) or Gasim bey caravanserai (Azerbaijani: Qasım bəy karvansarası) is a historic monument of the XV century. It is a part of Old City and located on Hagigat Rzayeva street, in the city of Baku, in Azerbaijan. The building was also registered as a national architectural monument by the decision of the Cabinet of Ministers of the Republic of Azerbaijan dated August 2, 2001, No. 132.
Source: en.wikipedia.org/wiki/Two-Storeyed_Caravanserai

not so easy to find

The Qasim Bey Caravanserai, also known as the Two-Storied Caravanserai, is a historical monument from the 15th century in the Old City of Baku, Azerbaijan. The building is registered as a national architectural monument. It was built by Shirvan Khalilullah I and was used by Qasim Bey and his followers. The design of the caravanserai is in the Shirvan-Absheron architectural style.The caravanserai has an octagonal courtyard surrounded by balconies with several rooms. The entrances to the building are decorated with portals and deep niches. The rooms at the corners are topped with small domes. The building also displays defensive features, such as corner towers. Today, the building is used as a club.