Santa Fe, which is situated at a height of 7,000 Ft above sea level, is the only capital city situated so high.The hot air balloon festival celebrated in Albuquerque is the largest international festival involving hot air balloons.The longest river in New Mexico is the Rio Grande. It runs the entire length of the state.The Palace of Governors is the oldest government building in the country. It was built in 1610 in Santa Fe.25% of New Mexico is a forest. There are 7 National forests in the state. It also has the country's largest forest which is about 3.3 million acres.New Mexico is known for its scientific inventions. The state also has the most PhDs per capita.New Mexico is the fifth-largest state in the country. Nearly 75% of its roads are unpaved.The Capulin Volcano is an extinct volcano situated in the state. At the top of this volcano, you can view regions of five states.