Constantine XI Palaiologos's rule as Byzantine Emperor was brief, and his death coincided with the fall of Constantinople.

Space can be a wondrous place, and we've got the pictures to prove it! Take a look at our favorite space pictures here, and if you're wondering what happened to today in space history don't miss ...

Odeon of Herodes Atticus 5. Enjoy the cultural landmarks without the crowds of tourists What’s better than visiting the ...