Iceland, Snaefellsnes Peninsula National Park, Ytri Tunga seal beach with sightseeing tourists. Do not liteer sign with assorted litter collected from beach.

Brazil, Para, Belem, Praca do Relogio. Late afternoon sunshine on brightly painted building facades with people walking across square and trees in foreground.

England, London, Westminster, Do Not Feed the Animals sign in Regents Park.

England, London, Westminster, Do Not Feed the Animals sign in Regents Park.

Portugal, Lisbon, Igreja do Carmo, View of skeletal arches of the Carmelite church ruined in the earthquake of 1755 dating from the late 14th century.

Portugal, Lisbon, Igreja do Carmo. View looking up to skeletal arches of the Carmelite church ruined in the earthquake of 1755 dating from the late 14th century.

Portugal, Estremadura, Lisbon, Detail of cork tree bark showing pattern.

Portugal, Estredmadura, Lisbon, Bairro do Castello, Castelo de Sao Jorge, St Georges castle from Chiado.

Portugal, Estredmadura, Lisbon, Bairro do Castello, Castelo de Sao Jorge, St Georges castle from Chiado.

Portugal, Estremadura, Lisbon, Baixa, Praca do Comercio, Detail of Rua Augusta triumphal arch.

Portugal, Estremadura, Lisbon, Baixa, Praca do Comercio, Detail of Rua Augusta triumphal arch.

Portugal, Estremadura, Lisbon, Baixa, Praca do Comercio, Tourists walking along colonnade next to Rua Augusta triumphal arch.