A huge inflatable red ball travels around the world, showing up in cities like Toronto and Abu Dhabi, squeezed into entryways and hovering above the street.

These mobile and temporary pop-up restaurants, cafes and bars won't stay in your area long enough for you to get bored with them, so enjoy them while you can.

The city of Lisbon, Portugal got creative in the face of budget issues this year with an annual Christmas light display that's as festive as ever.

Encyclopedias in English and Chinese are eroded into landscapes by artist Guy Laramee, in a narrative about a dystopian vision of the 23rd century.

Unlike the intricate spires and scrolls of traditional churches, these modern church designs focus on minimalism to enhance the beauty of natural light.

Money doesn't grow on trees anywhere in the world, but some trees in Britain are laden with the coins of people who have passed by through the years.

Sometimes they're poorly built, sometimes the ground is giving way beneath them and sometimes these 13 leaning towers of the world are intentionally tilted.

Demented clowns with chainsaws, monster spiders, human meat-processing, crazed killers - face all of these horrors and more at America's scariest haunted houses.

At least 700 cramped, mysterious tunnel systems exist beneath urban and rural Germany with many more in the rest of Europe - but what were they for?

All the beauty of historic churches, but filled to the ceiling with books: these 13 libraries from Iowa to Prague dazzle with classic architectural details.