Opportunities in US Embassy apart from Visa Application

I have seen that a lot of people visit the US Embassy in their respective countries only in matters related to visa applications . However, there are a lot more to offer at the US Embassy beyond just visa applications.
There are different self-development and exchange programs available, spanning various categories, particularly in the Department of Foreign Affairs, Some of these include: career counseling, guide for studying in US, professional sponsorship programs e.g. sponsoring experience teachers to USA for short course, enlightening students on how to get scholarship to study in USA and a whole lot more.
An example of such program is the Washington Fellowship for Young African Leaders inaugurated by President Obama in 2010 and which has now been renamed  The Mandela Washington Fellowship for Young African Leaders
Here is a non-exhaustive list of some of the programs by the Department of State Fellowships administered by the U.S. Embassy in Nigeria:

• Young African Leaders Initiative (YALI) 
• The FORTUNE/U.S. State Department Global Women's Mentoring Partnership

• The Fulbright African Research Scholar Program (ARSP)
• International Fulbright Science and Technology Program
• Foreign Language Teaching Assistant Program (FLTA)
• Humphrey Fellowship
• Youth Leadership Program
• The Youth Exchange and Study Program (YES)
• Study of the U.S. Institute for Student Leaders on Social Entrepreneurship
• Study of the United States Institute (SUSI) for Secondary Educators
• The Kennedy-Lugar: Youth Exchange And Study Program (KL: YES)

The Washington Fellowship for Young African Leaders is a program of the U.S. government and supported in its implementation by IREX.