Ulaanbaatar is the capital city of Mongolia. It is also known by several other names and synonymous terms such as "Ulan Bator," "Ulaanbaatar Hot," and "Urga." Ulan Bator is the official spelling of the city in Mongolia. The name means "Red Hero" in Mongolian. Ulaanbaatar Hot is a term used to refer to the thermal springs found in the city, which are a popular tourist attraction. Urga was the name of the city before it was declared the capital city of Mongolia. The term is still used by some people to refer to the city in reverence of its history and cultural significance.