What do Uzbekistan and Liechtenstein have in common? They are the only two "doubly landlocked" countries in the world. What do Bolivia and Tibet have in common? Well, they do seem to be kindred spirits of some sort. However, I'm aiming at a more remote answer. Both once had a coastline. One lost it to Chile in the late 1800s and the other was its own empire in the 9th century, currently under occupation.