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).
Cologne Cathedral in Cologne, Germany. This cathedral has been a UNESCO World Heritage Site since 1996, and was added to the âWorld Heritage in Dangerâ list in 2004. It is the largest Gothic cathedral in Northern Europe and from 1880-1884 was the tallest building in the world.