When it comes to discovering something unexpected, there are plenty of ways to describe the experience beyond just "stumbling upon" it. One might say they crossed paths with it, came across it unexpectedly, chanced upon it, stumbled across it, or even fell into it. Similarly, one might stumble upon a variety of things - an idea, a solution, a new hobby, or even a pleasant surprise. No matter what you call it, stumbling upon something unexpected can be a thrilling experience that adds some excitement and spontaneity to your day. So next time you find yourself stumbling upon something new, take a moment to appreciate the unexpected journey that led you there.