Panama Canal Expansion: Completed in 2016 for approximately $5.4 billion, the expansion aimed to accommodate larger ships and enhance global trade routes.
Great Wall of China: Cumulatively one of the most expensive construction projects, the Great Wall's total cost is astronomical, reflecting its historical significance.
Chernobyl Shelter: The protective sarcophagus over the Chernobyl Nuclear Power Plant disaster site cost around $2.3 billion
James Webb Space Telescope (JWST): Priced at $10 billion, the JWST is set to replace the Hubble
International Thermonuclear Experimental Reactor (ITER): With a projected cost of $20 billion, ITER aims to advance nuclear fusion research for sustainable energy.
Hubble Space Telescope: Valued at around $4.7 billion, the Hubble has provided stunning images of distant galaxies
Large Hadron Collider (LHC): Built for particle physics research at CERN, the LHC carries a $4.75 billion price tag
International Space Station (ISS): Costing over $150 billion, the ISS is one of the most expensive objects ever built