The pulmonary arteries carry blood from the heart to the lungs, to drop off carbon dioxide and pick up oxygen. There are two pulmonary arteries, one going to the left lung and one to the right.
Albi Cathedral. The Cathedral Basilica of Saint Cecilia (French: Basilique CathÃ©drale Sainte-CÃ©cile d'Albi), also known as Albi Cathedral, is the most important Catholic building in Albi, France, and the seat of the Roman Catholic Archbishop of Albi (in full, Albi-Castres-Lavaur).
First built as a fortress in the aftermath of the Albigensian Crusade; begun in 1282 and under construction for 200 years, it is claimed to be the largest brick building in the world. In 2010 the cathedral was designated a UNESCO World Heritage Site.