I thought this would be a great conversation topic/discussion idea. You have been give the chance to possess one device, artifact, or power from fiction that allows for interdimensional/multiversal travel. Note: Your choice doesn't need to be dedicated for world travel. Just has to have the capability. You'll also obtain the traits/knowledge associated with and necessary to use it. Do keep in mind any limitation, consequence, or rules of your choice item/power. What do you pick? What is your first use? What is your first destination? What is your travel plan?