Best places that you have to visit in Washington DC?

In may im planning to visit Washington DC, i will be close to the Ronald Reagan Airport. My question is: How is the weather on that time, what type of coat you recommend me to buy, Do you recommend me globes? Wich are the best places to go and visit in Washington DC? Wich are good restaurants with a good... show more In may im planning to visit Washington DC, i will be close to the Ronald Reagan Airport.

My question is:
How is the weather on that time, what type of coat you recommend me to buy, Do you recommend me globes?
Wich are the best places to go and visit in Washington DC?
Wich are good restaurants with a good price, not expensive to eat there?
How is the best way to move to visit those places? train, rent a car, bus.
12 answers 12