From Vietnam, tourists can travel to other Asian countries. Obtaining visas to these countries is quick and convenient. Tourists should contact travel agencies in Vietnam.
Refer to:
http://www.asiatravel.com/ for travel around Asia
http://www.visiteurope.com/ for travel to countries within Europe
http://www.australia.com for information about Australia
http://www.discoveramerica.com to understand more about the US
http://www.goafrica.about.com for travel to African countries
Or refer to the followings for general world travel guide
http://www.worldtravelguide.net
http://www.lonelyplanet.com