Towers are used frequently in industrial architecture. But they often have an unintended aesthetic appeal that long outlasts their industrial usefulness.

Not all military fortresses were boring boxes. Around the time cannons became popular, so did star-shaped forts designed to withstand the powerful weapons.

Sheer graphics and technology aren't everything. Here's a look at 10 of the most interesting and innovative games that have graced our living rooms.

After hearing about the fabled secret passages beneath one of the oldest cathedrals in the world, one director set out to get answers for himself and the world.

With how incorporated phones are in our lives, it's strange to think how quickly they've risen from landlines, to car phones, to smarter than our old computer.

The Jantar Mantar, a quintet of 18th century astronomical observatories, bear mute testimony to the skill and ingenuity of India's royal astronomers.

Soviet ingenuity made these amazing snow vehicles, which featured aircraft engines and could take civilians and soldiers through even the harshest winters.

Architecture is influenced by Eros, also known as Cupid. Expressing love in architecture is divinely romantic. For Valentine’s Day, here are 10 castles built for love.

Mysterious ghost ships with missing crews have spiced the tales of mariners for hundreds of years. Here are ten of the scariest ships you ever will "sea".

These 101 dizzy spirals may make you smile or they may induce vertigo, but here are the most impressive, most dizzying, spiraling staircases in the world.

There was a time when size and ferocity were the most valuable attributes for a creature to have. Here are 14 odd creatures that have called our planet home:

Ever since the invention of the car and the airplane, dreamers have been trying to combine the two. Today, they may be closer than ever to making it a reality.

"This building is out of order! You are not allowed to enter because you may DIE!" Welcome the mercury poisoned, abandoned Polam Philips factory in Poland.

These 10 international, interplanetary space habitats express our high hopes for the high frontier: the wide open "living space" far above the clouds!

Inhabited bridges were once very common all across Europe and other parts of the world. Today, not many remain, but will they make a resurgence in the future?