Fourteen photos of the world's most spectacular walled cities and towns - from a 'fairytale' town with 'towered walls' to a mountain city with 'starburst-shaped rampa…
MailOnline Travel has selected photos of some of the world's most breathtaking walled cities and towns to inspire you to book ...
New Scientist4d
Best ever map of early universe is double-edged sword for cosmologists
The finest ever map of the cosmic microwave background - the faint evidence of the universe's early form - has yielded ...