Rosa Parks is an iconic figure in the civil rights movement, best known for her refusal to give up her seat on a bus in Montgomery, Alabama in 1955. This act of defiance sparked the Montgomery Bus Boycott and helped to launch the civil rights movement. Her name has become synonymous with the fight for racial equality and justice. Yosemite National Park is another iconic park, located in California's Sierra Nevada mountains. It is known for its towering granite cliffs, giant sequoia trees, and stunning waterfalls. The Grand Canyon is one of the most iconic parks in the United States, located in Arizona. It is a vast canyon carved by the Colorado River, with steep walls that reach up to a mile deep. Finally, Yellowstone National Park is an iconic park located in Wyoming, Montana, and Idaho. It is home to some of the world's most unique geothermal features, including geysers, hot springs, and mudpots.