Egypt's Great Pyramid is one of the world's greatest and most mysterious marvels, and using cutting-edge tech and the latest engineering innovations, experts reveal what it would take to build the ancient wonder today.

Experts use today's technology in figuring out if building Venice today would be as dangerous as it was before.

Rome's aqueducts are one of the greatest engineering marvels in history, and it took dangerous, cutting-edge construction to build them. Experts use the latest tech and modern-day science to reveal if building them a second time would be just as deadly.

New York's Brooklyn Bridge might be the most important bridge in the world, and it took dangerous, cutting-edge engineering to built it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

Rome's Colosseum is the most famous stadium on the planet, and it took cutting-edge engineering and a fallen emperor to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

According to the Bible, Noah's Ark was a world-changing engineering feat, and it took cutting-edge construction to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

The Great Wall of China is one of the world's greatest engineering marvels, and it took dangerous, cutting-edge construction to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

Rome's Pantheon hides the secret to the Roman Empire's power, and it took dangerous, cutting-edge engineering to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

When catastrophic fires ravaged Notre-Dame in April 2019, one of the world's great wonders was left in ruins. Experts use the latest tech and modern-day science to reveal what it will take to build it a second time.

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.

Experts decode the groundbreaking engineering behind the Eiffel Tower.

From ancient cave dwellings to massive multi-winged estates, the home has never stopped evolving; now, experts mix modern materials with state-of-the-art technology to reveal if a modern home can be constructed to truly stand the test of time.

Discover if the Empire State Building could be built today at record speed.

Reconstructing the Hoover Dam could be a renewable energy innovation.

The Statue of Liberty is an artistic wonder of construction and the most famous symbol of freedom in the world; now, experts use cutting-edge engineering to reimagine what America's greatest icon would look like if we rebuilt it today.

Experts reveal how concert halls of the future could be constructed.

Experts reveal the logistics behind constructing another Stonehenge today.