They're graceful, agile and mighty athletes. And they're showing off their horse power today through Sunday at the Washington International Horse Show at the MCI Center.

Horses will compete in barrel-racing, high-jump, obstacle-running, chariot-racing and more, and they'll show off their maneuvers in trick-riding and at musical freestyle dressage exhibitions.

Visitors can get hands-on with free pony rides and learn all about horses.

In addition to the equine events, visitors can watch a "Challenge of Champions" bull-riding competition with top-ranked professional bull-riders. And visitors can catch terrier races with pint-sized dogs zooming over hurdles.

The Washington International Horse Show runs today through Sunday at the MCI Center, 601 F St. N.W., Washington. Hours are 7 a.m.-10:30 p.m. today-Saturday and 7 a.m.-7 p.m. Sunday. $10-$60. Call 410-481-SEAT or 202-432-SEAT.