Whether you’re religious or not, it’s easy to appreciate the immense beauty of these buildings. What differentiates a cathedral from a church is the seat of a Bishop; Specific to Roman Catholic, Anglican, Orthodox, Lutheran and Methodist faiths, cathedrals are central to a diocese governed by an Episcopal hierarchy. As with the vast majority of religious buildings, cathedrals are famous for their architecture, inside and out; many of which are now UNESCO world heritage sites. Often taking centuries to build, cathedrals are important works of art visited by millions of travellers every year. Take a glance at some of the ones we have chosen from Russia to Spain.