The Crystal Mosque, also known as the Iron Mosque, is located in the Islamic Heritage Park on the island of Terengganu, Malaysia. It is a unique and modern mosque made of steel, glass and crystal, which gives it its name.

The mosque was built in 2008 and can accommodate up to 1,500 worshippers. It is surrounded by a beautiful man-made lake and its architectural design is inspired by the traditional Islamic architecture. The mosque's main dome is made of steel and is covered with almost 10,000 pieces of crystal, which glisten in the sun and provide a beautiful, shimmering effect.

Visitors to the mosque are welcomed and can take a tour of the grounds, but should dress appropriately and remove their shoes before entering. The mosque is a popular destination for tourists and locals alike, and is considered one of the most beautiful and unique mosques in the world.