there are places in the USA that will have no bars on the phone

There are places in my home town that have no bars on the phone.

weird must be interference or something

I don't know. To show you how bad it is where I live, inside one building, I have no bars on my phone. Just outside of the same building, I have full number of bars.

Did you know, that even if you're out in the middle of the woods, even in the most secluded areas, you will always have service and bars in Estonia?

Heh, sort of easy when your whole country is about a fifth the size of my state, let alone my actual country... and we are the second smallest state we have...

Always find it a little funny how those on the continent take mobile coverage for granted... over here in Aus, we have cattle stations that are larger than many of your countries... heck, we even have national parks that are bigger, so it is somewhat impractical to have mobile coverage everywhere. The number of Euro tourists I have met in the middle of nowhere who have broken down and are confused when they have no mobile coverage is mind boggling. Even our most densely populated states still have large areas of them that average a population of less than 1 person per 100 square kilometres and therefore have no mobile coverage...

Glad you have great coverage and I'm glad you enjoy it. I myself, I like to get out in places where technology is pointless and nature is everything... even if it can be a bit unforgiving at times.

I'm from the State's (USA). I only recently found out about the whole mobile coverage in Estonia from a Geography Now episode.
https://youtu.be/1TTPq38LyPU
"Sorry" if you assumed that I was from Europe.