Ertugrul Gazi Mosque is one of Ashgabat's most recognizable religious buildings, built in a consciously Ottoman style with domes, slender minarets, and a broad marble presence. Its architecture stands apart from the city's Soviet and post-independence monumental vocabulary.
The mosque is an active place of worship, so visit respectfully and avoid prayer times if you only want to look at the building. From outside, the proportions and tilework are the main draw; inside access may depend on local practice and the expectations of attendants.