Similarly one may ask, what are the six parks in Westworld?
Theory on the six parks. Romanworld -in the 73 WW movie there were three parks West, Roman, and Medieval. So as a nod to the film they could keep that consistent.
Also, how big is the park in Westworld? Okay, so Nolan doesn't confirm the location of Westworld, but he does provide us with an interesting detail: the park is 500 square miles in size, which is indeed HUGE.
Also asked, how many different parks are in Westworld?
Before season two launched, DelosDestinations.com (the official in-universe website for Westworld and surrounding parks) listed Westworld and Shogun World as parks one and two, with four other parks mentioned (albeit not by name) for a grand total of six.
How many worlds are there in Westworld?
In the then-future year of 1983, a high-tech, highly realistic adult amusement park called Delos features three themed "worlds": Western World (the American Old West), Medieval World (medieval Europe), and Roman World (the ancient Roman city of Pompeii).