Going to the Pentagon is a huge waste of time. You can’t se more than a boring ugly building. It’s far away from everything. I’m just thankful I went there because the Arlington Cemetery is nearby and I wouldn't have gone of it wasn't for the Pentagon.
Okay, so you're smart enough not to drive in Washington D.C. And you're even smarter not to get caught in the infamous Dupont Circle. Then, tie your shoe laces. There are so many wonderful shops and restaurants to check out in the Dupont Circle area. Just remember, when you're taking the metro, you want to get out of exit 3 (the really long escalator) to walk right into the main area.