On my last day, I revisit my favourite sections of wall, using the bus to hopscotch between them.

BBC: Walking Hadrian��s Wall

Finally, some have suggested that the events on Christmas Day should cause us to revisit the decision to close the prison at Guantanamo Bay.

WHITEHOUSE: President Obama Speaks to the Press After Security Meeting

Today we revisit Brazil with an image again taken by Margaret Day, a social work graduate student at Columbia University.

FORBES: A Week in Brazil, Pt. 2