Photos of the Day: A Gorgeous Field and a Llama

St Petersburg, Russia

The sun sets over Nevsky Prospekt Street
Photograph: Peter Kovalev/Tass

Washington DC, US

Mark Zuckerberg, co-founder of Facebook, arrives to testify before a joint hearing of the US Senate commerce, science and transportation committee and the Senate judiciary committee on Capitol Hill
Photograph: Jim Watson/AFP/Getty Images

São Paulo, Brazil

Military personnel inspect an AR-10 sniper rifle at LAAD, the biggest military industry expo in Latin America
Photograph: Nacho Doce/Reuters

Los Angeles, US

Actor Gary Oldman and fashion designer Paul Smith at Chateau Marmont.
Photograph: Rob Latour/WWD/Rex/Shutterstock