|Located In||Monte d'Or|
|Chapter Accessible||Prologue: The Dark Parade|
|No. of Hint Coins||4|
|North Exit||Carnival Arcade|
Carnival Square is a location based in Monte d'Or, seen in Professor Layton and the Miracle Mask. It is the first location that Professor Layton and Luke visit in the town, and is the location of a parade held each night. Carnival Square leads north to the Carnival Arcade. In the UK version of the game, it is known as "Celebration Boulevard".
Carnival Square is lined with many tall buildings, with illuminated signs seen during the night. Tall trees and greenery line the roads, and a large water fountain is placed in the center of the road. The large tent seen in the Carnival Arcade can be seen overhead.
Prologue: The Dark Parade
Professor Layton and Luke explore Carnival Square while Emmy is off on her own investigations, and they help untangle Stumble from his balloons in the meantime. While they are watching the parade, it suddenly comes to a stop as the Masked Gentleman appears, turning people to stone. Emmy rejoins the group as they chase the Masked Gentleman on horseback, but he unfortunately makes his escape.