In 1944, Swiss Vice-Consul Carl Lutz pulled off one of history's cleverest bureaucratic tricks.

Granted permission to issue 8,000 protective letters for Jews emigrating to Palestine, he simply numbered every document between one and 8,000, then issued tens of thousands more with the same digits. The Nazis, apparently, never thought to count twice. He also established 76 safe houses across Budapest, declaring them Swiss territory. The most famous, the Glass House on Vadász utca, sheltered 3,000 people.

Tamás Szabó's 1991 bronze on Dob utca renders Lutz as a gilded angel, descending through a billowing ribbon toward a fallen figure below. The memorial stands near what was once an entrance to the Budapest ghetto, half-concealed by trees. Its plaque quotes the Talmud: whoever saves a life saves an entire world. For his efforts, Switzerland initially reprimanded Lutz for exceeding his authority.

VoiceMap's self-guided audio tours of Budapest's Jewish Quarter trace the network of diplomats and safe houses that protected thousands during the city's darkest months.