Pathway of Unity

If you walked in a straight line foreverrrr you'd go all the way around the world. how long do you think you could walk in a straight line before running into something...like a building or a tree? What if the world globally decided to make a straight pathway around the circumference and if you walked on that path you'd circle around the world forever...
would the path go over the ocean or under the ocean?...i'd say under...maybe like cable car type thing but a cable submarine? would that even work.

Wouldn't it be cool looking at this straight path in a outerspace?
I feel like since we're so technologically advanced, this would be possible. But considering that there have been so many people in this world, somebody's had this thought before. I wonder if they came up with a solution or proposed it? AH! What if the person before me that had this thought was somebody famous...hmm i'm thinking politically famous. somebody that could have done something to create this but didn't because they thought it was stupid... I think its an AWESOME idea. how long would it take? i'm thinking a couple of years...like 6?

i'll keep thinking about it.

p.s....every pathway would be different! because in america we use concrete to make roads and side walks, in irelend they use like stones...

ohh and i just reconsidered all of this...
you can't unify the whole world because not every country would be involved in this...