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

The Prairie Island Nuclear Power Plant from Amtrak.

Energy · United States

$993.3 million

Prairie Island Nuclear Power Plant

2007

A picture of Spectrum Stadium during the 2nd Quarter of the 2017 American Athletic Conference football championship game between the Memphis Tigers and the UCF Knights.

Stadium · United States

$52.6131 million

Acrisure Bounce House

2007

River Bend Station, Unit 1. The nuclear power plant is located near St. Francisville, LA (24 miles NNW of Baton Rouge, LA) in Region IV For information, go to <a href="http://www.nrc.gov/reactors/power.html" rel="nofollow">www.nrc.gov/reactors/power.html</a>. Photo courtesy of Entergy Nuclear©. More information on the NRC operating reactor facility page link at <a href="http://www.nrc.gov/info-finder/reactor/davi.html" rel="nofollow">www.nrc.gov/info-finder/reactor/davi.html</a> Visit the Nuclea

Energy · United States

$4.2 billion

River Bend Nuclear Generating Station

1986

Lipo Park Schaffhausen, das Fussballstadion mit Mantelnutzung in Schaffhausen.

Stadium · Switzerland

CHF 60 million

FCS Arena Schaffhausen

2017

Approximately $60.93 million

Aerial view of NBT Bank Stadium (10,815-seat capacity) before a Syracuse Mets Triple-A game in June 2026.

Stadium · United States

$28 million

NBT Bank Stadium

1997

Yurihonjo Arena (aka. Nices Arena) in Yurihonjo City, Akita, Japan

Stadium · Japan

¥10.8 billion

Yurihonjo Arena

2018

Approximately $97.81 million

Skyscraper · United States

$300 million

1500 Louisiana Street

2002

This picture was taken by Jim Dietrich on the banks of the Delaware River on April 9, 2005, from the old access road to the former ferry (Ferry Rd) in Bridgeport, NJ. In the background, you can see the current waterfront of Chester, PA.

Bridge · United States

$126.7 million

Commodore Barry Bridge

1974

First Comair Boeing 737-800 flight to Saint Helena Airport

Airport · United Kingdom

£285.5 million

Saint Helena Airport

2016

Approximately $385.48 million

Stadium · Russia

$350 million

VEB Arena

2016

Tallaght Stadium is a football stadium in the Southside suburb of Tallaght. Shamrock Rovers originally announced details of the stadium back in July 1996. The stadium is owned and operated by South Dublin County Council with Shamrock Rovers as the anchor tenants. The main stand seats 3,048 and holds home supporters, away supporters, club officials and press. A second stand seating 2,899 on the opposite (east) side of the ground, was completed in August 2009. This stand holds the stadium's TV gan

Stadium · Ireland

€11.2 million

Tallaght Stadium

2009

Approximately $15.62 million

Railway · China

CNY 92.3 billion

Harbin–Dalian high-speed railway

2007

Approximately $12.13 billion

Skyscraper · United States

$300 million

599 Lexington Avenue

1986

BorWin beta HVDC converter platform (top jackup rig part of the platform, without substructure) at Warnow dockyard Rostock, Germany

Energy · Germany

€1.9 billion

Veja Mate Offshore Wind Farm

2017

Approximately $2.15 billion

Stadium · France

€75 million

Stade du Hainaut

2011

Approximately $104.4 million

Skyscraper · United States

$516 million

383 Madison Avenue

2002

Fenerbahce Sukru Saracoglu Stadium, Kadıkoy/Istanbul

Stadium · Türkiye

$85 million

Şükrü Saracoğlu Stadium

2006

Westward view on US 101 in Agoura Hills towards the Annenberg Wildlife Crossing in April, 2025.

Bridge · United States

$114 million

Wallis Annenberg Wildlife Crossing

2026

Power-lines crossing the M1 just north of the Mary McAleese Boyne Valley Bridge.

Bridge · Ireland

€35 million

Mary McAleese Boyne Valley Bridge

2003

Approximately $39.59 million

This photograph of the Gemini 7 spacecraft was taken from Gemini 6 during rendezvous and station keeping maneuvers at an altitude of approximately 160 miles above the Earth. Gemini 6 and Gemini 7 launched on December 15, 1965 and December 4, 1965, respectively. Walter M. Schirra, Jr. and Thomas P. Stafford on Gemini 6 and Frank Borman and James A. Lovell on Gemini 7 practiced rendezvous and station keeping together for one day in orbit.

Space mission · United States

$1.3 billion

Project Gemini

1967

Building of Rezidence Eliška, Freyova, Prague-Vysočany, Czech Republic

Skyscraper · Czechia

CZK 500 million

Rezidence Eliška

2012

Approximately $25.54 million

Ferguslie Park and St Mirren Park from the air

Stadium · United Kingdom

£8 million

St. Mirren Park

2009

Approximately $12.46 million

Earth observation satellite Türksat 6A (model) by Turkish Aerospace Industries at IDEF 2015

Space mission · Türkiye

TRY 600 million

Türksat 6A

2024

Approximately $164.47 million

Sylvan Adams Velodrome in Bromont, Quebec.

Stadium · Canada

CAD 22 million

Vélodrome Sylvan Adams

2022

Approximately $16.9 million