Railway · Nigeria
$1.17 billion
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What the world’s biggest projects really cost
Compare published costs, timelines, project scale and original sources behind remarkable infrastructure and space missions.
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1733 projects
Railway · Canada
CAD 3.7 billion
Line 6 Finch West
2025Approximately $2.65 billion
Railway · United States
$3.8172 billion
Link 2 Line (East Link Extension)
2026Skyscraper · South Korea
KRW 4500 billion
Lotte World Tower
2016Approximately $3.88 billion
Skyscraper · Singapore
SGD 7.15 billion
Marina Bay Sands
2008Approximately $5.05 billion
Tunnel · Turkey
€4.0396 billion
Marmaray Tunnel
2021Approximately $4.78 billion
Tunnel · United States
$2.386 billion
Maryland Route 200
2014Skyscraper · Malaysia
MYR 5 billion
Merdeka 118
2025Approximately $1.17 billion
Railway · United States
$2.17 billion
Mid-Coast Extension of the Blue Line (San Diego Trolley)
2021Railway · Italy
€7.95 billion
Milan–Bologna high-speed railway
2010Approximately $10.54 billion
Tunnel · Turkey
$7 billion
Motorway 5
2019Bridge · Canada
CAD 4.239 billion
New Champlain Bridge Corridor Project
2019Approximately $3.19 billion
Bridge · United States
$3.98 billion
New Tappan Zee Bridge
2018Railway · Netherlands
€3.1 billion
Noord/Zuidlijn
2018Approximately $3.66 billion
Tunnel · United States
$1.9 billion
Northgate Link tunnel
2021Stadium · Canada
CAD 1.6 billion
Olympic Stadium
1976Approximately $1.62 billion
Skyscraper · Thailand
THB 120 billion
One Bangkok
2024Approximately $3.4 billion
Railway · Australia
AUD 2.875 billion
Parramatta Light Rail, Stage 1
2024Approximately $1.9 billion
Tunnel · United States
$1.8 billion
Regional Connector
2023Skyscraper · Germany
€1.3 billion
Seat of the European Central Bank
2015Approximately $1.44 billion
Airport · United States
$1 billion
Seattle–Tacoma International Airport third runway
2008Tunnel · Japan
¥690 billion
Seikan Tunnel
1988Approximately $5.38 billion
Railway · Hong Kong
HKD 82.99 billion
Sha Tin to Central Link
2020Approximately $10.7 billion
Stadium · United States
$5 billion