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

Bridge · Norway

NOK 150 million

Lysefjord Bridge

1997

Approximately $21.21 million

The photo was taken before danish champions FC Midtjylland's last game against SønderjyskE, on 7th of june 2015

Stadium · Denmark

DKK 85 million

MCH Arena

2004

Approximately $14.19 million

Skyscraper · United States

$1 billion

MGM Grand Las Vegas

1993

Skyscraper · Netherlands

€84.4 million

Maastoren

2009

Approximately $117.72 million

Stadium · United Kingdom

£50 million

Madejski Stadium

1998

Approximately $82.81 million

The Madison Avenue Bridge over the Harlem River in New York City carries Madison Avenue and E. 138th Street from Manhattan to the Bronx. This view is from within a Metro North Hudson line train cross the river.

Bridge · United States

$50 million

Madison Avenue Bridge

2024

Dam · Pakistan

$434.505 million

Mangla Dam

1967

Skyscraper · United States

$12 million

Manhattan Municipal Building

1914

Manzhouli Xijiao Airport Terminal Building

Airport · People's Republic of China

CNY 290 million

Manzhouli Xijiao Airport

2007

Approximately $38.12 million

Das Mapei Stadion während eines Serie A Spiels zwischen Sassuolo Calcio und Parma Calcio im Januar 2026

Stadium · Italy

ITL 25 billion

Mapei Stadium - Città del Tricolore

1995

Approximately $15.35 million

A view of the Margaret Hunt Hill Bridge from the GeO-Deck of Reunion Tower in Dallas, Texas (United States).

Bridge · United States

$182 million

Margaret Hunt Hill Bridge

2012

Skyscraper · United Arab Emirates

AED 1.2 billion

Marina 101

2017

Approximately $326.75 million

PAETEC Park, a soccer-specific stadium in Rochester, New York. This is the home stadium for the Rochester Rhinos soccer team and the Rochester Rattlers lacrosse team. This picture was taken prior to a soccer game. The camera is facing east, from the highest row of section 311. Kodak Tower, the global headquarters of the Eastman Kodak company, can be seen between the light pole and the scoreboard assembly. The rest of downtown Rochester's high rises are behind the scoreboard.

Stadium · United States

$35 million

Marina Auto Stadium

2006

Image of one of the MarCO cubesats with transparent background.

Space mission · United States

$18.5 million

Mars Cube One

2018

Stadium · Poland

PLN 156.8953 million

Marshal Józef Piłsudski Stadium

2010

Approximately $52.03 million

Matsumoto Global Park Football-Stadium. (Another name:Alwin)

Stadium · Japan

¥11.3 billion

Matsumotodaira Football Stadium

2001

Approximately $92.98 million

Stadium Aerial view with Nelspruit in context

Stadium · South Africa

ZAR 1.2 billion

Mbombela Stadium

2009

Approximately $141.62 million

Photo taken by Ian Fraser, 8th August 2004

Stadium · United Kingdom

£4.9 million

McDiarmid Park

1989

Approximately $8.02 million

Moscow: view of Mercury City Tower from the observation point of Imperia Tower (Moscow-City)

Skyscraper · Russia

$1 billion

Mercury City Tower

2013

Dam · Sudan

$2.945 billion

Merowe Dam

2009

Stadium · Turkey

TRY 60.554 million

Mersin Arena

2013

Approximately $31.81 million

Skyscraper · Japan

¥78 billion

Midland Square

2006

Approximately $670.68 million

Aerial view of the Mike O'Callaghan–Pat Tillman Memorial Bridge over the Colorado River at Hoover Dam (Nevada-Arizona limit)

Bridge · United States

$114 million

Mike O'Callaghan–Pat Tillman Memorial Bridge

2010

Stazione Aeroporto di Linate della linea M4 a gennaio 2016. Foto di prosugno

Railway · Italy

€2.3 billion

Milan Metro Line 4

2024

Approximately $2.49 billion