Our daily geography puzzler.

Anchor Lisa Mullins explains why Zimbabwe's currency denominations are losing some of their zeros.

For our Geo Quiz we were looking for an Austrian lake where strains of Mozart, Verdi and Strauss echo in the air. The answer is Achensee, and the music is from the Tyrolean Opera Program that takes place there every summer. Artistic Director Elizabeth Bachman sends us an audio postcard.

The World's Marco Werman has this appreciation of the man known as the "father of Congolese rumba."

Today on The World: Former Bosnian Serb leader Radovan Karadzic appears before the UN war crimes tribunal; A high school in Thailand gives transgender students their own bathrooms; and Haiti's struggles to feed itself.

Former Bosnian Serb leader Radovan Karadzic appeared before a judge at the United Nation war crimes tribunal in the Hague today. Karadzic told the judge he would represent himself. The World's Jason Margolis has more.

Anchor Lisa Mullins speaks with Ljiljana Smajlovic, Belgrade Editor in Chief of Serbia's daily newspaper, Politika, about reaction in Belgrade to the trial of former Bosnian Serb leader Radovan Karadzic.

Anchor Lisa Mullins talks with Chris Merrill, director of the University of Iowa's International Writing Program and The World's book critic, about a poem called "A Morning Bomb." The writer was former Bosnian Serb leader Radovan Karadzic, who sent the poem to the Iowa writing program decades ago.

Briton Gary McKinnon is accused by the US government of committing "the biggest military computer hack of all time." Now McKinnon's lost his fight in Britain to avoid extradition to the United States to stand trial. The World's Clark Boyd reports.

A high school in Thailand has taken the unusual step of installing separate toilets for transgender boys - those who consider themselves to be girls. Anchor Lisa Mullins speaks with BBC Correspondent Jonathan Head who has visited the school.