St. Giles Cathedral is a beautiful church in Edinburgh, Scotland. It is considered the home church of Presbyterianism and many people who are faithful to that religion make a pilgrimage here. The church was built back in the 1100s, but it has been carefully restored over the years to keep the church in working order. You can take tours of the building that take you up to the rooftop, where you can get great views of the city of Edinburgh. You can also do guided walking tours of the church itself and the surrounding grounds. The tours are free, which are the best part!