We travelled to Alaska so our kids could see snow, India so they could experience a true culture shock, Connecticut for Halloween, Dallas was different, Aruba for turtles, Costa Rica for the Sloths, Panama just to see a ship go through the canal, Done New York loved the old buildings, Washington and a few places in Florida, San Francisco was amazing and not what i expected, have done Thailand, Vietnam, Cambodia, Kuala Lumper, Singapore, and NZ and London, Switzerland, Austria and Bavaria all very pretty, Vancouver was cold. Plenty of other countries not mentioned. My eldest son took his first steps in as Vegas.
I think part of travel is the interaction with local people, being in Russia and trying to be understood is fun, Tokyo very clean and safe and once again being understood was hit and miss however so enjoyable.
However at the end of the day nothing is better than flying home. If you ever get to LA Zoo go to the kangaroo exhibit as this reminded us of home the smell of eucalyptus is Australia. There we were in a foreign land and it smelt of home that will always stay with me.