Every year, 50 to 100 tourists visiting Israel, the vast majority devout Christians, succumb to what is colloquially known as Jerusalem syndrome. Awed by the ostensibly holy nature of their surroundings, they begin to exhibit strange behavior. Many perform acts of spiritual and physical cleansing before taking to the streets and becoming ad-hoc prophets and messiahs. Seemingly normal individuals begin delivering sermons to passers by. Others partake in daily activities to prep the world for the second coming of Christ. Yet others genuinely believe that they are Jesus reborn.
This phenomenon is not localized to Jerusalem. Stendhal syndrome is the name of a similar psychosomatic illness in which sufferers may succumb to dizziness, fainting, confusion, and hallucinations when surrounded by art, particularly in Florence, Italy. Similarly, Paris Syndrome describes the psychological disorders of predominantly Japanese tourists that every year experience temporary psychosis partially brought on by the disconnect between their idealized perception of Paris and reality. While Jerusalem syndrome is engendered by the city strongly matching cultural and in this case religious expectations, Paris syndrome is evoked by the disjuncture between expectations and truth.