For the most part, stunning photos. The colours and abstract shots are amazing. (However, there are only so few interesting ways to take photos of pyramids.)
The writing left much to be desired. I really hope the author/photographer had permission to take and publish all the photos he did. It was frustrating that all the non-Christian adjacent "sacred places" were kind of vaguely mythologized, whereas the photos of the Sea of Galilee and Jerusalem were accompanied by Bible stories recounted as fact and corresponding Bible verses. Also pretty ick the way the photographer talked about Indigenous people throughout the book.
The photos are of places that are sacred in different ways: Glastonbury, Callanish, the Taj Mahal, lotus flowers in a pool, Shinto shrines, Cambodian temples, serpent mounds, the Ganges, sunsets.... Not much in the way of Cathedrals of western curches, but a lovely array of inspiring places that are photographed with visual intelligence.
A quote from Milne: "My four visits to the Galapagos Islands have been an ongoing spiritual journey. They are where I go not to solve the riddle, but to sense the mystery."