Learn about science and nature with item #773. ItÂ's a Family Membership to Ecotarium in Worcester. This item is valued at $80. Ecotarium is a museum of science and nature where visitors are encouraged to explore the natural world through a unique indoor-outdoor experience. The museum features hands-on exhibits, wildlife habitats, and a living pond to name just a few of itÂ's features. Bid on item #773. ItÂ's a Family Membership to Ecotarium in Worcester. This item is valued at $80.