Old Faithful is a cone geyser located in Yellowstone National Park in Wyoming. It was named in 1870 during the Washburn-Langford-Doane Expedition and was the first geyser in the park to receive a name. It is a highly predictable geothermal feature, and has erupted every 44 to 125 minutes since 2000. The geyser and the nearby Old Faithful Inn are part of the Old Faithful Historic District. Wikipedia
Mount Rushmore National Memorial is centered around a sculpture carved into the granite face of Mount Rushmore in the Black Hills in Keystone, South Dakota. Sculptor Gutzon Borglum created the sculpture's design and oversaw the project's execution from 1927 to 1941 with the help of his son Lincoln Borglum. The sculpture features the 60-foot heads of Presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The four presidents were chosen, respectively, to represent the birth, the growth, the development, and the preservation of the United States. Wikipedia
