Famous Landmarks
The Eiffel Tower
A "temporary" 20-year structure that Paris just... never took down, and is now unimaginable without.
The Great Wall of China
A 2,000-year, multi-dynasty construction project so vast that no one has ever fully agreed on exactly how long it actually is.
Machu Picchu
A royal Inca estate so well-hidden in the Andes that the Spanish conquistadors never even found it.
Petra
An entire ancient city, most famously its iconic Treasury facade, carved directly into solid rose-colored rock rather than built up from separately assembled stone.
The Pyramids of Giza
The Great Pyramid held the title of tallest man-made structure on Earth for roughly 3,800 years — a record no other building would come close to touching until the 19th century.