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

New Ryan Field under construction in Evanston, from the corner of Central and Ashland.

Stadium · United States

$870 million

Ryan Field

2026

In Mokhotlong, Ambassador Gonzales met with the Lesotho Highlands Development Authority for a tour of what will be Polihali Dam in about half a decade. This is Phase II of a massive, exemplary bilateral water project between Lesotho and South Africa.

Dam · Lesotho

LSL 7.68 billion

Polihali Dam

2022

Approximately $469.56 million

The Te Atatū Bus Interchange, a stop for the WX1 express bus service that utilises the Northwestern Motorway in Auckland, New Zealand

Railway · New Zealand

NZD 4.9 billion

Northwestern Busway

2026

Approximately $2.85 billion

On Thursday, February 2, 2023, Prime Minister Sheikh Hasina inaugurated the construction of the country's first underground metrorail (Mass Rapid Transit) MRT Line-1 in Rupganj, Narayanganj. The English description and title of this file were generated using a large language model (Google Gemini - gemini-3.1-flash-lite) from the original Bengali description provided by the Press Information Department. Show prompts used: Translation prompt: Translate the following Bengali text into English in en

Railway · Bangladesh

BDT 1143.9489 billion

MRT Line 1

2026

Approximately $9.38 billion

first section of the AR1 highway linking Antananarivo to Toamasina

Road or highway · Madagascar

$924 million

AR1 highway

2027

Церемония спуска на воду атомного ледокола «Чукотка».

Energy · Russia

RUB 100 billion

Chukotka

2019

Approximately $1.54 billion

From Wikipedia, the free encyclopedia Doc Hudson First appearance Cars (2006) Last appearance Cars Land Created by John Lasseter Voiced by Paul Newman (the first film, the first video game) Corey Burton (all other materials) Based on Fabulous Hudson Hornet of NASCAR Information Species Hudson Hornet motorcar Gender Male Occupation MD, judge, former racer Doc Hudson ("Dr. Hudson" or simply "Doc") is an animated, anthropomorphic retired race car who appears in the 2006 Pixar film Cars as a medical

Road or highway · United States

$284 million

Shelby Bypass

2025

Building model of Xiamen Xiang'an International Airport, permanently displayed at Xiamen Planning Exhibition Hall. Creater of this model was staff member / related people of Xiamen Planning Exhibition Hall.

Airport · People's Republic of China

CNY 53.685 billion

Xiamen Xiang'an International Airport

2026

Approximately $8.32 billion

Airport · Vietnam

VND 3900 billion

Phan Thiet Airport

2026

Approximately $161.39 million

Kaiwaikawe Wind Farms first tower under construction.

Energy · New Zealand

NZD 287 million

Kaiwaikawe Wind Farm

2024

Approximately $173.7 million

An aerial of Nyabarongo River from Nyungwe National Park to River Nile on June 17, 2019. At 297 km (184 miles), Nyabarongo is the longest river entirely in Rwanda. Emmanuel Kwizera

Dam · Rwanda

$230 million

Nyabarongo II Multipurpose Dam

2026

Skyscraper · United States

$381 million

Aero1200

2027

The stub tracks protruding past Redondo Beach station on the LA Metro’s C Line.

Railway · United States

$3.4 billion

C Line Extension

2026

Talbingo Reservoir in summer with cumulus clouds building in the background.

Energy · Australia

AUD 12 billion

Snowy 2.0 hydropower project

2023

Approximately $7.97 billion

Scania K280UB O-Bahn Custom 'CB80' bus operating route J2G at TTP Interchange

Road or highway · Australia

AUD 97.8 million

O-Bahn Busway

1989

Approximately $77.34 million

Bruce Highway passing through Mirriwinni, 2018

Road or highway · Australia

AUD 9 billion

Bruce Highway

Approximately $5.8 billion

Series of photographs of the stretch of the Million Dollar Highway between the Red Mountain Pass and Ouray: 10/18. This image shows the U.S. 550 at the Uncompahgre Gorge.

Road or highway · United States

$345 million

U.S. Route 550

2001

Railway · People's Republic of China

CNY 67.983 billion

Line R1 (Xiamen Metro)

2025

Approximately $9.46 billion

Road or highway · Australia

AUD 3.1 billion

M6 Motorway

2025

Approximately $2 billion

Road or highway · Australia

AUD 36 million

South East Busway extension to Rochedale

2014

Approximately $37.27 million

Looking northbound on Highway 99 at an interchange with Highway 17 in Delta.

Road or highway · Canada

CAD 260 million

Highway 91/17 and Deltaport Way upgrades

2023

Approximately $192.61 million

Highway interchange in Coquitlam, BC looking from the south.

Road or highway · Canada

CAD 62 million

Highway 1 Grandview-Cape Horn HOV widening

1998

Approximately $41.79 million

Bixby Creek Bridge, viewed from the northern side near Big Sur on the Central Californian Coast in the United States.

Road or highway · United States

$8 million

Big Sur Coast Highway

1937

The western terminus of State Route 526 and eastern terminus of State Route 527 at an interchange with State Route 99 and Interstate 5 in southern Everett, Washington.

Road or highway · United States

$96.2 million

Washington State Route 527

2017