Blue Lodge Freemasonry offers only three traditional degrees, and in most jurisdictions, the rank of past or installed master. Master Masons are also able to extend their Masonic experience by taking further degrees, in appendant bodies approved by their own Grand Lodge.
The Ancient and Accepted Scottish Rite is a system of 33 degrees (including the three Blue Lodge degrees) administered by a local or national Supreme Council. This system is popular in North America and in Continental Europe. The York Rite, with a similar range, administers three orders of Masonry, namely the Royal Arch, Cryptic Masonry and Knights Templar.
In Britain, separate bodies administer each order. Freemasons are encouraged to join the Holy Royal Arch, which is linked to Mark Masonry in Scotland and Ireland, but separate in England. Templar and Cryptic Masonry also exist.
(the source/read more: Wikipedia)