Washington DC is carved out of the US States of Virginia and Maryland. Virginia is in the southwest while Maryland borders Washington DC to the west, north, and east.
When looking at a map of the area, DC is on the north bank of the Potomac River. Specifically at the transshipment point between water transport and land transport.
As the national capitol, Washington DC has a lot of tourist areas, monuments, museums, memorials, and other places to visit. A non-exhaustive list of places to visit include: