ST Gallen Cathedral with Xmas tree

St. Gallen ( Sankt Gallen (help·info) or St. Gall; French: Saint-Gall; Italian: San Gallo; Romansh: Son Gagl) is the capital of the canton of St. Gallen in Switzerland. It evolved from the hermitage of Saint Gall, founded in the 7th century. Today, it is a large urban agglomeration (with around 160,000 inhabitants) and represents the center of eastern Switzerland. The town mainly relies on the service sector for its economic base.

The main tourist attraction is the Abbey of St. Gall, a UNESCO World Heritage Site. Its renowned library contains books which date back to the 9th century.

The city has good transport links to the rest of the country and to neighbouring Germany and Austria. It also functions as the gate to the Appenzell Alps.

A cathedral (French cathédrale from Lat. cathedra, "seat" from the Greek kathedra (καθέδρα), seat, bench, from kata "down" + hedra seat, base, chair) is a Christian church which contains the seat of a bishop, thus serving as the central church of a diocese, conference, or episcopate. Although the word "cathedral" is sometimes loosely applied, churches with the function of "cathedral" occur specifically and only in those denomination with an episcopal hierarchy, such as the Roman Catholic, Anglican, Orthodox, and some Lutheran and Methodist churches. In the Greek Orthodox Church, the terms kathedrikos naos (literally: "cathedral shrine") is sometimes used for the church at which an archbishop or "metropolitan" presides. The term "metropolis" (literally "mother city") is used more commonly than "diocese" to signify an area of governance within the church.

There are certain variations on the use of the term "cathedral"; for example, some pre-Reformation cathedrals in Scotland now within the Church of Scotland still retain the term cathedral, despite that church's Presbyterian polity that does not have bishops. The same occurs in Germany, where Protestant churches (many with a presbyterian or congregational polity) co-operate under an umbrella organisation, the Evangelical Church in Germany, with some retaining cathedrals or using the term as a merely honorary title and function, void of any hierarchical supremacy. As cathedrals are often particularly impressive edifices, the term "cathedral" is often applied colloquially to any large and impressive church, regardless of whether it functions as a cathedral, such as the Crystal Cathedral in California or figuratively to imply that a church is of outstanding beauty such as St John the Baptist, Tideswell, known as the "Cathedral of the Peak".

Image stitching or photo stitching is the process of combining multiple photographic images with overlapping fields of view to produce a segmented panorama or high-resolution image. Commonly performed through the use of computer software, most approaches to image stitching require nearly exact overlaps between images and identical exposures to produce seamless results. Some digital cameras can stitch their photos internally.

The blue hour comes from the French expression l'heure bleue, which refers to the period of twilight each morning and evening where there is neither full daylight nor complete darkness. The time is considered special because of the quality of the light at this time of day.