People peer through a window during a memorial service for late former Czech President Vaclav Havel inside Prague Castle December 21, 2011. Thousands of mourners marched through Prague's cobblestone streets on Wednesday, following the playwright-president's body on its last public journey, to the castle where it will lie in state until a funeral on Friday. REUTERS/Bernadett Szabo (CZECH REPUBLIC - Tags: POLITICS OBITUARY)