I live in the United States. It's a BIG place. It's big enough that you can drive for days and not hit a border. It's diverse enough that you can see deserts, rain-forests and mountain ranges all in the same day. The people here hail from all over the globe. You can be in one of our major cities and spend time in Chinese, Italian, Irish and Polish neighborhoods.
I can remember the first time I realized that my country could seem "other worldly". I was driving through the Rocky Mountains for the first time at 18 years old. I saw those big peaks rising in front of me, something you just don't see growing up in Michigan, and I realized that there must be so much more beyond them that I hadn't yet considered. Worlds... other-worlds.
The place that I've been in the US that seemed the most "other-worldly" to me is Glacier National Park in Montana:
I just seems like it's not of this earth, it's too beautiful.
What about you? What place seems other-worldly to you that you've been to?