Which country`s capital is known as 'White-Marble' City?

کس ملک کا دارالحکومت 'وائٹ ماربل' سٹی کے نام سے جانا جاتا ہے؟

Iran

Saudi Arabia

Turkmenistan

Turkey

None of these

Turkmenistan Capital: Ashgabat (world's highest density of buildings made from white marble)

Declared by: Guinness World Records

Location: Central Asia