Al Mirani Fort in Muscat was built by the Portuguese in the 16th century. It, along with neighbouring Al Jalali Fort, looks out to the Gulf of Oman and would guard the port of Muscat in the past. The Mirani Fort and Al Jalali Fort are located on either side of the palace. Although closed to the public, visitors can view this fort from outside. This fort was extremely instrumental in the downfall of the Portuguese. The fort has many ancient war tools on display.