Christianity is the world's most prolific religion, with churches and other dedicated buildings on literally every continent, including Antarctica. Several sites built in the name of Christianity are on the UNESCO World Heritage List.
As Christian congregations have had a significant role in most communities where they are present, a traveller will learn much from visiting a local church, whether a believing Christian or not.
Moscow, Russia, center of the Russian Orthodox church
Salt Lake City, United States, center of the Latter Day Saints movement.
When attending a service or ceremony at a Christian place of worship, it is appropriate to dress conservatively and show respect; details vary by place. It is a very good idea to learn a bit about the local rules before visiting a place of worship. In most Christian churches, a man should remove his hat, and in some, a woman is expected to cover her head. Generally, voices should be kept down, and mobile phones and similar devices should be set to silent. During the service, you should behave reverently, and not eat, drink, take photographs, check your mobile phone, and so on. Rules regarding dress or noise are often not as strictly enforced for young children. You should avoid leaving the church while the service is in progress unless necessary.
If you are visiting a place of worship that is a destination for travellers and are not interested in worship, it is better to wait for a service or ceremony to conclude before visiting.
Latin used to be the dominant language of the Roman Catholic Church, but today it is replaced by the vernacular language.
Most churches amplify sounds.
Wall and glass art of Christian cathedrals.
Contemplation and prayer.
Churches usually have a money box where visitors can pay for candles and booklets.
Monasteries might offer accomodation to travellers.