Harar is a walled city located in eastern Ethiopia that was once a forbidden city closed to visitors. It has 99 mosques and is considered the fourth most holy city in Islam. The city has a distinctly Muslim cultural influence visible in its architecture. The Simien Mountains National Park contains Ethiopia's highest peak and is home to endangered species like the Ethiopian wolf and walia ibex. It offers spectacular scenery and trekking opportunities. Dire Dawa is an industrial and commercial center located on the railway line from Addis Ababa to Djibouti. It has historical sites from the early 20th century and attractions like a traditional market.