Address of Visa Office in Washington, D.C.

Can you please tell me what the address is of the Visa office is in Washington, D.C.? I have seen two different addresses. One on Wisconsin Avenue and one on International place. Which one should I go to in person. Also, I live in Georgia but will be in Washington, D.C. on business. Can I submit my application in person at the D.C. office or do I need to go to the Houston consulate? Thank you for your help!