3. White House: You really can’t head to Washington DC, American or not, without seeing the White House. You will also be able to find two other top buildings nearby. This includes the Supreme Court and the Capitol. Basically, all of the biggest decisions in the United States of America are made here. You are going to be at the center of everything. If you wish for a free ticket to the Capitol, you must obtain them online beforehand. If you are American, you can also get them from your local Senator.