The capital of Yemen is Sana'a. Located in the western part of the country, Sana'a is one of the oldest continuously inhabited cities in the world, with a rich history that dates back over 2,500 years. The city is known for its unique architectural styles, notably its mud-brick tower houses and ancient mosques, which are recognized as UNESCO World Heritage Sites. Despite facing challenges such as political instability and conflict in recent years, Sana'a remains a significant cultural and historical center in Yemen, embodying the diverse heritage of the Arabian Peninsula.