Airport · People's Republic of China
$3.8 billion
BudgetGuessr project library
What the world’s biggest projects really cost
Compare published costs, timelines, project scale and original sources behind remarkable infrastructure and space missions.
Verified project costs
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1733 projects
Energy · Canada
CAD 1.5 billion
Boundary Dam Unit 3 Carbon Capture Retrofit
2014Approximately $1.36 billion
Railway · United States
$21.05 billion
Brightline West
2026Airport · Singapore
SGD 1.28 billion
Changi Airport Terminal 4
2017Approximately $926.91 million
Airport · People's Republic of China
CNY 71.864 billion
Chengdu Tianfu International Airport
2021Approximately $10.82 billion
Railway · Japan
¥11000 billion
Chūō Shinkansen
2025Approximately $73.5 billion
Stadium · United States
$1.15 billion
Climate Pledge Arena
2021Airport · Chile
$990 million
Comodoro Arturo Merino Benítez International Airport: International Terminal
2022Railway · Australia
AUD 19.041 billion
Cross River Rail
2025Approximately $12.27 billion
Railway · United States
$1.89 billion
DART Silver Line
2025Airport · United States
$4.02 billion
DFW Terminal F Expansion Program
2025Airport · United States
$4.893 billion
Denver International Airport
1994Railway · Slovenia
€1.15 billion
Divača–Koper Railway upgrade
2026Approximately $1.3 billion
Airport · United Arab Emirates
$4.5 billion
Dubai International Airport Terminal 3
2008Railway · United States
$11.6 billion
East Side Access project (including Grand Central Madison station)
2023Railway · Mexico
MXN 100 billion
El Insurgente
2026Approximately $5.2 billion
Tunnel · Denmark
DKK 70 billion
Fehmarn Belt Fixed Link
2026Approximately $10.57 billion
Airport · Mexico
MXN 104.531 billion
Felipe Ángeles International Airport
2021Approximately $5.16 billion
Bridge · United States
$60.3 million
Francis Scott Key Bridge (Baltimore)
1977Bridge · United States
$5.2 billion
Francis Scott Key Bridge replacement
2025Tunnel · United States
$6 billion
Frederick Douglass Tunnel
2026Space mission · Chile
$2.54 billion
Giant Magellan Telescope
2024Space mission · United States
$14.089 billion
Global Positioning System
1995Bridge · United States
$35 million