The official route of the Pan-American Highway through Mexico (where it is known as the Inter-American Highway) starts at Nuevo Laredo, Tamaulipas (opposite Laredo, Texas) and goes south to Mexico City along Mexican Federal Highway 85.
Individual, Family, Dual Premium, and Family Premium Members receive a discount on tickets to the 4-D Theaters at Central Park Zoo ($4 Member/$7 non-Member) and the New York Aquarium ($3 Member/$6 non-Member). Conservation-level Members have free access to these attractions.
For those who want Singapore Zoo + Night Safari + Jurong Bird Park, you can buy 3-in-1 Park Hopper for $69 per adult (saves $18) and $46 per child (saves $10). Park Hopper entitles you to one visit per park within 30 days from the date of purchase of ticket. You may visit each park on a different day.