WA WA WA WASHINGTON!
D.C. is a great place to visit, even people think that could be boring, I totally think the opposite. Of course you don't have to expect another NYC, because everything is so different!
Anyway if you are interested in American history and you like museums, this is the place that you are looking for!!! Another important thing is that you don't have to be scared by walking, in a city as D.C. you have to walk because is the best way to enjoy it!!! In summer time is very hot and humid but at the mean time in the museums is f...... freeze, so bring always with you a scarf or a sweatshirt!!! Remember the city is great, but the most important is the people that are coming with you, they make the difference and I was very lucky for that!!!
Those are some picture directly from my three-day trip in the United States' Capital! Check them out!!!
NYC from New Jersey
The White House
The Washington Monument (1)
The Washington Monument (2)

Nice traffic circle

Lincoln Memeorial

A monument in a park in front of the White House
The Parlament
The botanic garden (1)
The botanic garden (2)
Museum of air and space, my favorite!!!
Temperature detector
Spacesuit
National Gallery Museum (outside)
National Gallery museum (inside)
Public space
The Newseum
Obama (1)
Obama and Michelle (1)
Obama and Michelle (2)
HOPE!!!
Big fish eats small fish
I like those... very good idea!
National Portrait Gallery Museum
Democracy, such of a sweet illusion!!!!