I'm so into circuit courts!
Really?  Are you a lawyer of some kind or just like cases?
no, i just like to read about courts and stuff. I just learned the core concept of circuit courts requires judges to travel to different locales
Interesting!  I did not know that.  So, do they actually travel or was that just originally what they did?
they still travel to ensure wide visibility and understanding of cases in a region
What kind of cases do they usually preside over?
any type of cases! 
Is it just one judge or is it a panel of judges, like how the supreme court is set up?
Assize of Clarendon). Thus, the term "circuit court" is derived from the practice of having judges ride around the countryside each year on pre-set paths − circuits − to hear cases. Especially on the United States frontier, a judge might travel on horseback along with a group of lawyers. Abraham Lincoln was one such attorney who would ride the circuit in Illinois. In more settled areas, a stagecoach would be used. Eventually, the legal caseload in a county would become great enough to warrant the establishment
Circuit court
Circuit courts are court systems in several common law jurisdictions. The core concept of circuit courts requires judges to travel to different locales to ensure wide visibility and understanding of cases in a region. More generally, some modern circuit courts may also refer to a court that merely holds trials for cases of multiple locations in some rotation.
History.
King Henry II instituted the custom of having judges ride the circuit each year to hear cases, rather than requiring every citizen to bring their cases to London (see