There’s nothing like a good mystery—criminal, historical, scientific, artistic, culinary—to make for a great read. This year, Atlas Obscura investigated unsolved cases from around the world and through the centuries—from a 16th-century shipwreck off the coast of Australia that may or may not exist to a modern Midwestern ice cream flavor that just might be made with beaver secretions. A few of these unknowns may eventually become known through technological breakthroughs or newly discovered archival documents, but most are puzzles that will never be solved (or treasure that will never…
