On http://en.wikipedia.org/wiki/Tallest_structures_of_different_countries you can find for many countries the tallest structures. Please add those for further countries and make corrections (if necessary).
Please consider also guyed masts, chimneys and other less well-known tall structures!

bridges can enter? :?

wow
i never knew the tower in Poland was once the tallest structure in the world but it collapse.
very interesting read
thanks