The capital of Yemen is Sana'a, which was founded 1st century. Sana'a has been the capital since 1962.
Sana'a is the largest city in Yemen and functions as: Center of the Governorate.
Sana'a is located at 15.3694° N, 44.1910° E, at an elevation of 7,382′ ft.
Source: https://flic.kr/p/86o71i