4- Sheikh Zayed Grand Mosque, United Arab Emirates
The greatest place in Abu Dhabi to visit, tourists never misses this mosque while visiting Abu Dhabi. The area of the mosque is wide enough that almost 41,000 people can visit it at a time. It has 1000 pillars, 4 minarets and much more. This mosque was built in the respect of Sheikh Zayed, who ruled Abu Dhabi for more than 30 years. There are no charges to visit the mosque it is open for everyone but on the morning of Friday, it remained closed for non-believers. You are not allowed to enter in before removing your shoes.