Yes, Hagia Sophia Mosque and Museum is currently open to the public as a museum in Istanbul, Turkey. The museum is open from 9:00 a.m. to 5:00 p.m. every day except for Monday, when it is closed.

Hagia Sophia is one of the most popular tourist attractions in Istanbul and receives millions of visitors annually. It is considered a UNESCO World Heritage Site and is a must-see destination for anyone interested in history, art, and architecture.

Visitors can explore the interior of the building and see its beautiful mosaics, marble pillars, and other architectural features. Guided tours are also available, which provide more information about the history and significance of the building.

It is important to note that due to the COVID-19 pandemic, some restrictions and safety measures may be in place for visitors to Hagia Sophia. It is recommended to check the museum's website or with local authorities for the most up-to-date information on visiting guidelines.