Bait Muzna Gallery:

Previously a royal household, this gallery features a mix of revolving exhibitions, calligraphy and cartography with works that are available to buy. Some of the exhibitions are by Omanis and others by expatriate artists living in Muscat and the rest of the country.
Saidiya street, Old Muscat. Open: 09:30 to 13:30 and 16:30 to 20:00, Sat to Thu.

Oil and Gas Museum:

A thorough and distinctly patriotic look at how Oman transformed itself from a poor desert kingdom ruled by Britain into a modern 21st century oil-exporting major player in the Middle East. See the real story of modern-day Oman.
Seih Al Maleh street. Open: 07:00 to 16:00, Sat to Wed; and 08:00 to 12:00, Thu.

Omani Museum:

A look back at Omani culture, heritage, architecture and agriculture. Numerous artefacts are displayed as part of this roller coaster ride through the country’s long past.
St Ourum. Open: 09:30 to 13:30, Sat to Wed; and 09:30 to 12:30, Thu.

Children’s Museum:

Interactive exhibits that focus on science as a means of education, housed in a striking white dome structure just outside of Muscat.
Shatti Al Qurum, Way 2601. Open: 09:00 to 13:00, Sat to Thu.