Welcome to Moldova's Milestii Mici, a (literally) underground sensation—and with almost 2 million bottles, the largest wine cellar on the planet.
So yeah, it's big. In fact, you'll find its ancient stone floors make it look like a vast subterranean castle that just happens to have 124 miles worth of shelf space. They're using all that room to age and store bottles of their first-rate Golden Collection, so go ahead and look around—and if you get lost, just pull out a bottle: each wine label sports a handy map of the joint.
As you ramble, you'll notice the catacombs are named for different varietals—so if you're partial to chardonnays or sauvignons, just look for the road signs. Your Moldovan tour guide will keep you from straying too far before leading you through a quick turn through the upstairs garden. (Stay calm—the wine fountain is sadly fake.) Finish the evening by heading to the downstairs to one of the tasting halls, where you'll enjoy both a tasting and Moldova's finest sausages with 39 new friends at an enormous banquet table.
Bring your corkscrew.