TOP secret in the world

Hello..I found out some interest things that i must share with you all.

Do you have seen newspaper or internet that have some of the building are very awesome and you are wondering how was the building to built up?

Yes,there have the truths behind 10 of the world's great wonders.

1. Taj Mahal, Agra,India

The elegance of the mausoleum can be attributed to clever engineering. To make the Taj Mahal appear perfectly straight from ground level, the architect designed the minarets to slant slightly outward, which also ensured that in the event of an earthquake they would fall away from the mausoleum's precious dome.

2. Burj Khalifa, Dubai,UAE

This ethereal tower in the Arabian Desert cost US$1.5 billion to construct. The world's tallest building. To withstand high winds and earthquakes, this superscraper is designed with a 'buttressed core' – three wings set at 120 degrees to each other, anchored around a central hub. Each wing supports the others, so when the wind blows on two of the wings, the third resists the force.

3. Machu Picchu, Peru

During construction, the Inca didn't use wheels to transport the blocks. Instead it's thought they hauled them up the slopes by hand, as protrusions have been found on a few stones (suggesting grips for workers' hands). Ingenious engineering solutions were used to counteract earthquakes: L-shaped blocks anchored corners together, doors and windows tilted inward, and no mortar was used between stones so that, if shaken, they could move and resettle without collapsing.

4. Great Pyramid of Giza, Egypt

Pyramid, the sole survivor of the Seven Wonders of the Ancient World, was the tallest construction in the world until the Eiffel Tower was built in 1889. It was built to hold just three burial chambers, but required a workforce of around 30,000. Intriguingly, analyses of the living arrangements, bread-making technology, animal remains and ancient graffiti suggest the workers were not slaves as previously thought, but skilled laborers.

Amazing building with the awesome architect engeenering.If i have the chance,i wish to explore those places and take pictures.