Look like? Could you please clarify your question.
Islam is a religion. It has no physical appearance.
Just like anyone else...
Islam is not a country, it is a religion. The religion with the second most believers in the world (behind Christianity). Most people that believe in Islam (called Muslims) live in the middle-east and are Arab.
Salaam brothers and sisters These two pictures above show the five pillars of islaam
Traditionally, it is a building with a dome and a minaret (high tower)
Muslims worship in mosques witch do not look like huge decorative buildings they are often abandon buildings like bowling alleys,grocery stores and strip clubs witch is actually against Islam as written in the qu'ran
i do not jus like Islam, I love Islam because, Islam is free, peacful and Great. i know it may not answer your question but it is hard to explain why we love Islam, one jus falls in love with Islam.
look below link:
It is a crescent moon and star. Like this: http://upload.wikimedia.org/wikipedia/commons/5/5a/Islamic_symbol_gray.PNG
Islam does not teach Muslim to kill. Please look at the Al-Qur'an.
Islam does not allow relationships like these that's why Islam has early marriage concept !
There is no religious symbol for the Islam religion in the sense as the cross in Christianity or David star in Judaism. The moon and/or the star are political (and not religious) symbols that had been introduced by the Ottoman empire.