Look up and see tigers, cheetahs, pumas, lions, and more felines at Philadelphia Zoo's Big Cat Crossing, which opens Saturday as part of an extension of the Zoo360 Animal Exploration trail.

Visitors can look up and see some of their favorite cats walking above and around the zoo in a 330-foot-long mesh overhead passageway that extends from the zoo's First Niagara Big Cat Falls to the main visitor path.

Zoo360 also has the Treetop and Great Ape exploratory trails. The zoo's trail and exploration system is the only one of its kind.

Big Cat Crossing at the Philadelphia Zoo, 3400 W. Girard Ave. Zoo hours are 9:30 a.m. to 5 p.m. daily. Activities: $20, $18 for ages 2 to 11, free for members and 1 and younger. Information: 215-243-1100, www.philadelphiazoo.org.

The Circus at Marple Sports Arena

The circus is coming to town on Saturday and Sunday at the Marple Sports Arena.

Enjoy 90-minute performances full of fun, feats, and laughs along with a petting zoo. There will also be pony and camel rides. The circus, presented by Walker International Events, will be held rain or shine.

Walker International Circus, 3 and 5:30 p.m. Saturday and 2 p.m. Sunday, Marple Sports Arena, 611 S. Parkway Blvd., Broomall. For information and tickets: www.walkerinternationalevents.com

'Three Little Pigs' in Pitman

Broadway Theatre of Pitman presents the stage production Three Little Pigs.

Go on the journey with the porcine brothers, who are independent and now on their own. They have been warned about the big bad wolf and each has built a house - one of sticks, another of straw, and the third of bricks. When the wolf comes to huff, puff, and blow, which of the houses will tumble down?

"Three Little Pigs" 10 a.m. Friday and 10 a.m. and 1 p.m. Saturday at Broadway Theatre of Pitman, 43 S. Broadway, Pitman. Admission $9. Tickets can be purchased by phone at 856-384-8381; at the theater box office, or online at www.pitmanbroadwaytheatre.com.