Besides being an architectural marvel, the stunning Sultan Qaboos Grand Mosque in Oman houses the second largest chandelier in the world. It's approximately the size of a small house. The grand chandelier is covered with jewels and crystals, with a staircase inside it in case it requires repair and maintenance. The splendid marvel is also the second largest mosque in the world. Its floor is covered with a hand-woven carpet, dyed with traditional vegetable dyes.