Ditch the crowds at the Philadelphia Zoo with exclusive tours happening only this month. But you'll pay a premium: $150-$500 ...

Each animal in the zoo has a different temperature threshold to be outside, so warm weather creatures like rhinos and giraffes won't be included in the tours. But others like the Amur tigers ...

consider the 25-minute narrated safari cruiser tour, which only costs a few extra dollars and provides a good orientation of the zoo. Recent visitors (especially those with kids in tow ...