Three halls of this museum are filled with eye-catching seasonal exhibits for kids, ranging in subject from local ecology to outer space. The exhibits are in Spanish, but most are interactive, so language shouldn't be much of a problem. The museum's most popular resident is the Egyptian exhibit's sarcophagus; the mummy draws "oohs" and "aahs." Located in a former prison, big kids may want to check it out just to marvel at the castlelike architecture and the old cells that have been preserved in an exhibit about life behind bars. The complex that houses the museum is called the Centro Costarricense de Ciencia y Cultura (Costa Rican Center of Science and Culture), and that will be the sign that greets you on the front of the building. Though just a short distance from downtown, a walk here takes you through a dodgy neighborhood. Always take a taxi to and from.