Something that's distant from you is faraway. Your faraway pen pal's letters might take over a week to arrive in your mailbox.
You can describe something that's far off or removed from you with the adjective faraway — and you can also use it for things that only feel distant, or that happened a long time ago. Your faraway childhood or the faraway history of your town's oldest building are a couple of examples. This word can also be correctly spelled with a hyphen, far-away, or as two words, far away.