What is the uniqueness of the monarchical system of government in a kingdom​

A distinguishing characteristic of most monarchies is that the Monarch usually reigns as Head of State for life; in a republic, the Head of State (often called the president) is normally elected for a certain amount of time. There are currently 29 extant sovereign monarchies in the world.

where is the

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.