Histology is the study of tissues. There are only four primary tissue types: epithelial, connective, muscular and neural. For now we will only concentrate on epithelial and connective tissues. Epithelial tissue covers exposed surfaces or lines internal cavities or passageways and forms glands.
The Cathedral of Learning in Bangkokâs Assumption University soars to a towering 522 feet (159 meters) in height. Built in 2002, the 39-story structure mimics the design of the University of Pittsburghâs Cathedral of Learning â albeit in a more postmodern style.
1. Ulm Minster, Ulm, Germany â 161.5 m (530 ft) â The tallest cathedral in the world is also the latest cathedral built among all the European churches in this list. The Ulm Minster has 768 stairs that reach a height of 143 meters.