You can't be in two places in one time but there's a place in Latin America where you can. The La Amistad International Park (Parque Internacional La Amistad), a transboundary protected are shared by Costa Rica and Panama.
La Amistad in equally divided between the two countries covering a total of 401,000 hectares of tropical rainforest and by far the largest nature reserve in Central America which make it one of UNESCO's World Heritage Site.
More about La Amistad, on the link below.
Link: A Big Costa Rican Adventure at La Amistad International