Building of the Ancient era
Quick - Regular - Epic - Marathon
City must have an improved source of Horses or Ivory nearby.
The Circus can only be constructed in a city with an improved source of horses or ivory nearby. The Circus increases a civilization's happiness.
A circus is a company of performers that often includes clowns, acrobats, jugglers, high-wire acts, trapeze artists, musicians, and animal trainers. Most circuses are traveling companies which move from city to city over the course of a season, while some remain in a single location year-round. In ancient Rome the circus was the name of a building where chariot racing, staged battles, jugglers, and other entertainments were held. The first Roman circus was the Circus Maximus, which at its largest could seat some 250,000 screaming citizens - roughly 25% of the city's population.