The great Temple of Olympian Zeus in Athens, whose construction started in the 6th century BC and lasted until the 2nd century AD, originally had 104 columns. Only 15 of them remain standing today. Those are the Corinthian columns by the way.

The Sz�chenyi Chain Bridge is a suspension bridge that spans the river Danube between the western (Buda) and eastern (Pest) sides of Budapest. Built in 1849, it was the first permanent bridge across the Danube in the Hungarian capital and was regarded as one of the modern world's engineering wonders.

A sign in a bookstore in Cambridge, MA, USA.

Galleria (Corso) Vittorio Emanuele II is a covered shopping street in the center of Milan, providing a passage between the Cathedral of Milan on Piazza del Duomo and the La Scala Theater on Piazza della Scala .

"The world is full of obvious things which nobody by any chance ever observes." - Sir Arthur Conan Doyle, The Hound of the Baskervilles

Lac des Vaches (Lake of Cows) is located in the Vanoise National Park in the French Alps, near the village of Pralognan-La-Vanoise.

We live in a multi-tasking world - just like contemporary Operating Systems evolved from a single-user, single-tasking DOS, humans have finally became multi-tasking in the 20th century. 2000 years ago Alexander the Great was the only person who could do two things at once. Today, any kid can watch TV, SMS/IM with friends, play a computer game, read/update Facebook/Tweeter, check news, eat a meal - all at the same time.

You can never be sure...

Shanghai is the largest city (proper) by population in the world, with over 23 million people (as of 2010).