This is St. Paul's cathedral. The cathedral was designed by Christopher Wren to be re-built after the Great Fire of London in 1666. Even if you are not particularly religious, you can still go and view the beauty of the cathedral.
Bronze and Sterling Silver Dragon DoorKnocker - This gatekeeper emerges from your door to welcome friends and guard against foes. The four-piece set includes the two wings and body cast in bronze, and the flame knocker of sterling silver.
Ring of fire: Known as a 'prominence eruption', this is a loop of gas heated to an extremely high temperature. Twisted magnetic fields on the Sun's surface cause the gas to be shaped like this. This image was captured by the satellite on March 30