Which gospels...

Painting by Carl Bloch of Jesus preaching the sermon on the mount.
Question: 

Which two Gospels record the Beatitudes?

Above is a painting by Carl Bloch of Jesus giving the sermon on the mount, of which the Beatitudes are a part.  Bloch is Danish, which may explain why his characters look a bit more Scandinavian than Middle Eastern!

Photograph of the church on the traditional site of the Beatitudes.
Answer: 

Matthew 5:1-12 and Luke 6:17-26, but the two are quite different. 

You can read about the differences and some interpretations of the Beatitudes here.

Above is a photograph of a Franciscan chapel built in 1939 on the traditional site of the Sermon on the Mount.  Only Matthew tells us that this was said on a mountain.  Luke's version is called the sermon on the plain.