It's Polish Independence Day, and like in any other country, the youngins love celebrating liberty by destroying things. German (?) and Polish "youths" butted heads with (and threw things at) riot cops in Warsaw. Check out the view from above.
Credit goes to the pilot of this Polish LOT Boeing 767 who was forced to land at Warsaw's airport with no landing gear. The flight originated in New York and was forced to circle the airport as it burned fuel before attempting this successful emergency landing.