If you are interested in an adventurous trip that has some history behind it, then what better than a trip to Cumberland Caverns? Acknowledged as one of the longest caves in the US and in the world, this place is stationed in McMinnville and is a national natural landmark, making it a must visit place for number of tourists from all around the world. This place will surely blow your mind with its amazing surroundings and lots of amazing historical facts. A must visit place for sure when you are in McMinnville.