

Washington, DC was built as the capital city of a new, revolutionary country, and it's home to some of America's greatest wonders; now, experts use cutting-edge engineering to reimagine what this place would look like if we had to build it again.

Experts reveal if it's now possible to build a modern Atlantis underwater.

The Parthenon is the crowning jewel of ancient Greek architecture engineered according to a mysterious mathematical formula, the golden ratio; expert builders examine the secrets of its design and investigate if modern-day methods could rebuild it.

Experts use cutting-edge tech to discover if a modern vessel of equal opulence to the Titanic could be successfully built for the sea today.

America's transcontinental railroad helped transform the United States into a global superpower, and today, cutting-edge engineering is behind hi-tech railways to once again revolutionize travel from sea to shining sea.

Experts reveal what it would take to rebuild the legendary Machu Picchu.