Geographic Range: Ireland

Access: Through ancient burial mounds, magic boats, a mist, or underwater

Populated by: Immortal women

Reasons for visiting: Staying young forever

As tempting as the Irish realm of Tír na nÓg may seem, with its beautiful rolling hills and promises of eternal youth, it is not kind to mortal visitors. Filled with beautiful immortals, primarily young women, it seems like the perfect place to while away the time.

However, it’s very easy to get trapped here, and if you ever decide to return home, the second you set foot on the material plane, you will instantly age. In a moment, all the time you’ve spent in Tír na nÓg will come rushing back to you. If you're lucky, it’ll only be a few weeks or months, but if you’ve really lost track of time, you could be looking at hundreds of years of debt being paid by your body. Don’t expect to live for long upon your return, and don’t say we didn’t warn you.