The Baroque was an artistic style used during the late 16th century, until the early 18th century in Europe. It was most prominently defined as " the dominent style of art in Europe between the Mannerist and Rococo eras. it was a very dynamic movement.
The most distinct shape of the baroque style is the oval, it is a very common shape among baroque architectureCreating the building out of interlacing ovals allowed the architect to have large open spaces that are different than just plain circles. http://library.thinkquest.org/16545/data/low/baroque.htm