Spiro Agnew? This is a guess...
The UK does not have a president. It has a queen. So no UK president has ever visited India.
a bowl
Most religious leaders would have. Many of those who later became religious leaders would also have various places they visited later become holy places.
President Pervez Musharraf visited Italy from 28th until 30th September 2004
President Nixon
Kaaba.
The president :P
steve jobs
It is most often visited during the Summer Solstice (also called Summer Equinox) which is in the middle of summer, as it has important religious significance to religious groups such as Neopagans who perform rituals there.
George Washington
George bush
Louis Southern