There are over 4,000 Medieval pagodas and other monuments in Baganpic.twitter.com/cwDP69Ojm1
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I presume it is like any empire: the surplus comes from conquest and exploitation (including enslavement).
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.