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

Russellville nuclear power plant, February 2010

Energy · United States

$2.522 billion

Arkansas Nuclear One

1980

Aerial view of Arrowhead Stadium 08-31-2013

Stadium · United States

$375 million

Arrowhead Stadium

1972

womenworthwatching Osaka vs Coco, US Open 2019

Stadium · United States

$254 million

Arthur Ashe Stadium

1997

Bridge · United States

$24 million

Astoria?Megler Bridge

1966

View of the Reliant Astrodome in Houston from a parking lot near Reliant Arena

Stadium · United States

$35 million

Astrodome

1965

The Auckland Harbour Bridge, Auckland, New Zealand, as seen from the southwest, from Watchman Island in the Waitemata Harbour.

Bridge · New Zealand

£7.516 million

Auckland Harbour Bridge

1959

Approximately $21.11 million

Airport · United States

$15 million

Baltimore/Washington International Thurgood Marshall Airport

1950

Panorama of the Blue Band at beaver stadium during the 2007 Homecoming Game

Stadium · United States

$1.6 million

Beaver Stadium

1960

Picture of Beaver Valley Nuclear Power Plant

Energy · United States

$8.52 billion

Beaver Valley Nuclear Generating Station

1987

Airport · People's Republic of China

CNY 80 billion

Beijing Daxing International Airport

2019

Approximately $11.59 billion

Airport · United States

$60 million

Billings Logan International Airport Terminal Expansion

2024

Airport · United States

$4.4 billion

Boston Logan International Airport Modernization

2005

The completed Gtech Community Stadium in October 2023

Stadium · United Kingdom

£71 million

Brentford Community Stadium

2020

Approximately $116.83 million

Browns Ferry Nuclear Power Plant photographed by the U.S. Nuclear Regulatory Commission

Energy · United States

$3.259 billion

Browns Ferry Nuclear Power Plant

1977

The w:Byron Nuclear Generating Station near w:Byron, Illinois, (Region 3)

Energy · United States

$4.5 billion

Byron Nuclear Generating Station

2007

Aerial view of Calvert Cliffs Nuclear Power Plant, Calvert County, Maryland.

Energy · United States

$766 million

Calvert Cliffs Nuclear Power Plant

1977

Stadium · United States

$15 million

Candlestick Park

1960

Terminal del aeropuerto de Castellón, vista desde la glorieta de entrada

Airport · Spain

€150 million

Castellón-Costa Azahar Airport

2011

Approximately $208.79 million

A stitched panorama view of the Chornobyl Nuclear Power Plant site in Ukraine, pictures taken in June 2013. Descriptions of the buildings from left to right: First half of the New Safe Confinement - after second lifting operation (has not yet reached its final height), reactor 4 with existing shelter building and the new and old ventilation shafts, reactor 3, cranes to dismantle the old ventilation shaft, reactor 2, reactor 1.

Energy · Ukraine

$1.6 billion

Chernobyl Nuclear Power Plant

2019

Columbia Center, the tallest building in Seattle and the Pacific Northwest, seen from the Smith Tower rooftop observatory to the southwest.

Skyscraper · United States

$200 million

Columbia Center

1985

View of the Columbia Nuclear Generating Station and low draft cooling towers at Hanford WA, USA.

Energy · United States

$6.392 billion

Columbia Generating Station

2007

Energy · United States

$2.221 billion

Davis–Besse Nuclear Power Station

2007

The Diablo Canyon Power Plant and hills, north of Avila Beach (former Port San Luis), in San Luis Obispo County, California. Photo taken from offshore. Note that photo title in file name is incorrect (my bad).

Energy · United States

$11.556 billion

Diablo Canyon Power Plant

2007

Railway · Singapore

SGD 21 billion

Downtown Line

2020

Approximately $15.22 billion