From the announcement:
From far and wide, people flock to the big red tent that travels across the countryside. Drawn by whispers of exotic animals and high-flying performers, some of these onlookers might even be tempted to leave their normal lives behind and join the show themselves. A new world of excitement awaits them in Under the Big Top, the tenth expansion for legendary tile-laying game Carcassonne!
?Capturing the thrill of the circus, Under the Big Top incorporates twenty new land tiles and two new types of meeples into the Carcassonne library. This new expansion allows players to attract people from all over to view their menagerie of animals or witness death-defying stunts of acrobatic skill. And just like the daring risks taken by circus performers, Under the Big Top provides players opportunities to score big points…if they can draw in the crowds, that is.