Utilize your language skills with the U.S. Census Bureau
If you have foreign language skills, consider working for the United States Census Bureau, to help collect data on understanding language use in your community.
UNESCO, the United Nations Educational, Scientific, and Cultural Organization, "seeks to build peace through international cooperation," and does so through numerous projects in countries around the world. Their work includes efforts involving cultural preservation, disaster preparedness, and youth empowerment, among many others. One common thread through every one of their missions, however, is intercultural dialogue.