The capital of Mongolia is Ulaanbaator and is located in the Northern part of the country. There are over 1,000,000 people who live in the city which makes it by far the largest city in Mongolia.
Located in north central Mongolia, the city lies at an elevation of about 1,310 metres (4,300 ft) in a valley on the Tuul River. It is the cultural, industrial, and financial heart of the country. It is the center of Mongolia’s road network, and is connected by rail to both the Trans-Siberian Railway in Russia and the Chinese railway system.
The city was founded in 1639 as a movable (nomadic) Buddhist monastic centre. In 1778 it settled permanently at its present location, the junction of the Tuul and Selbe rivers. Before that it changed location twenty-eight times, with each location being chosen ceremonially. In the twentieth century, Ulan Bator grew into a major manufacturing centre.
Wikipedia has two panoramic shots of Ulaanbaator. To view the photos in high resolution on the Wiki site, click on the photos below. At the site you can zoom in really well and see good details of the photos: