AFGHANISTAN is a landlocked republic in southern Asia. The greater part of the country is mountainous with a central mass of huge mountain ranges, the highest of which is the Hindu Kush. Many of the peaks rise to enormous heights, the greatest being Nowshak (7,845 meters or 24,557 feet) on the border with Pakistan. Glaciers and permanent snowfields cover the highest peaks. Routes through the mountains depend upon lower-lying passes such as the famous Khyber Pass in the east. Lower-lying areas are found only in the northwest, west, and south of Afghanistan, but much of this is arid or desert land as in the Registan Desert in the south.
If you are thinking of traveling to another country, then you should definitely consult the UK Foreign and Commonwealth Office (FCO) to gauge whether or not a country is a potential target for terrorism.
This animated map breaks down the threat level found in each country.