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.

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1733 projects

View Of the main building of the Duane Arnold Energy Center (DAEC) from nearby road

Energy · United States

$1.165 billion

Duane Arnold Energy Center

2007

Emirates Stadium, London, England, United Kingdom

Stadium · United Kingdom

£430 million

Emirates Stadium

2006

Approximately $791.19 million

Dam · Cyprus

$19.42 million

Evretou Dam

1991

October 2020 aerial image of Fresno Yosemite International Airport in Fresno, California

Airport · United States

$150 million

Fresno Yosemite International Airport

2025

Fahrzeug der neuen Standseilbahn Schwyz-Stoos bei der Talstation

Railway · Switzerland

CHF 88 million

Funicular Schwyz–Stoos

2018

Approximately $89.99 million

Bridge · United States

$60 million

George Washington Bridge

1931

Glen Canyon Dam seen from downstream, with the hydroelectric powerplant at the dam's base and the US-89 bridge visible at the top, Page, Coconino County, Arizona, United States.

Dam · United States

$155 million

Glen Canyon Dam

1966

This image depicts the GPM Core Observatory satellite orbiting Earth, with several other satellites from the GPM Constellation in the background. Global Precipitation Measurement (GPM) is an international satellite mission that will set a new standard for precipitation measurements from space, providing the next-generation observations of rain and snow worldwide every three hours.

Space mission · United States

$961 million

Global Precipitation Measurement

2011

Gordie Howe International Bridge in Detroit, Michigan days before its opening

Bridge · Canada

CAD 6.4 billion

Gordie Howe International Bridge

2025

Approximately $4.58 billion

Dam · United States

$163 million

Grand Coulee Dam

1943

The bridge "Grenlandsbrua", Telemark, Norway

Bridge · Norway

NOK 180 million

Grenland Bridge

1996

Approximately $27.91 million

G6581 to Hong Kong West Kowloon. I have to wait until its departure to get this unobstructed view, after all, G6582 is the first MTR380A revenue service entering Guangzhou.

Railway · People's Republic of China

HKD 84.42 billion

Guangzhou–Shenzhen–Hong Kong Express Rail Link

2015

Approximately $10.89 billion

The northern opening of the Hallandsås tunnels

Tunnel · Sweden

SEK 10.8 billion

Hallandsås Tunnel

2008

Approximately $1.64 billion

Traveling through the Holland Tunnel, from Manhattan to New Jersey.

Tunnel · United States

$48 million

Holland Tunnel

1927

Illustration of the ICESat-2 spacecraft on a transparent background.

Space mission · United States

$1.064 billion

ICESat-2

2014

Airport · Philippines

PHP 8.8 billion

Iloilo International Airport

2007

Approximately $190.69 million

Indian Point nuclear reactor, seen from across the Hudson River on US 9W

Energy · United States

$2.45 billion

Indian Point Energy Center

2007

Illustration of the Ionospheric Connection Explorer spacecraft on a transparent background.

Space mission · United States

$253 million

Ionospheric Connection Explorer

2014

İstanbul Yeni Havalimanı Airport main building, airplane wing tip

Airport · Turkey

€10.2 billion

Istanbul Airport

2018

Approximately $12.05 billion

Looking north towards the Ivanpah's eastern boiler tower.

Energy · United States

$2.2 billion

Ivanpah Solar Power Facility

2014

Jomo Kenyatta International Airport, locally known as JKIA is located in Nairobi, Kenya. It is East and Central Africa's busiest airport and is an important aviation hub continentally.

Airport · Kenya

$29 million

Jomo Kenyatta International Airport

1978

Kariba Dam, Zimbabwe. Photo converted from 35mm slide film to digital.

Dam · Zambia

$480 million

Kariba Dam

1977

Keisei AE series EMU passing Narita Yugawa Station on a Skyliner service

Railway · Japan

¥126.1 billion

Keisei Narita Airport Line

2010

Approximately $1.44 billion

The KK100 is a supertall skyscraper in Shenzhen, Guangdong.

Skyscraper · People's Republic of China

CNY 5 billion

Kingkey 100

2011

Approximately $773.82 million