Heineman's Winery and Crystal Cave

This locally owned winery (established in 1888 and still owned by the Heineman family) has the additional attraction of being located above an amazing cave of crystals -- the world's largest geode. The fascinating cave, discovered by winery workers digging a well in 1887, helped the winery survive Prohibition in the early 1900s. Admission to the cave and winery tour costs $6 for adults and $3 for children. Note: They only accept cash. The tour includes a token for a drink at the end of the visit -- wine or grape juice in the gift shop and wine store. Heineman's capitalizes on the Lake Erie islands' ideal grape-growing conditions and produces a variety of award-winning wines, including some ice wine varieties. The Crystal Cave tour requires navigating some steep and narrow stairs. Two small "rooms" in the geode are linked by a narrow tunnel. Claustrophobic folks may be uncomfortable with the quarters, but for visitors not bothered by stairs or small spaces, the cave offers a fascinating glimpse at a beautiful natural phenomenon.