George Washington, later to become the 1st President of the United States of America, visited Barbados in 1751 and spent about two months.
Barbados was the only country he ever visited outside colonial America.
This fact alone should make a tour of George Washington House, the place where he stayed while in Barbados, a must-do activity for all visitors from the USA.
The House, 
now appropriately under the control of the Barbados National Trust.
It is also of interest to other visitors, including Barbadians, as it gives useful insights into life as it was in the Barbados of 250 years ago.