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.

Play BudgetGuessr Sources

Verified project costs

Explore the collection

1711 projects

Dam · China

CNY 120 billion

Wudongde Hydropower Station

2021

Approximately $17.39 billion

Kingspan Stadium (formerly known as Ravenhill). View from East Terrace

Stadium · United Kingdom

£16.5 million

Ravenhill Stadium redevelopment

2015

Approximately $25.21 million

Interstate 93 tunnel in Boston, part of the Big Dig

Road or highway · United States

$14.8 billion

Boston Central Artery/Tunnel project (Big Dig)

2007

Misinchinka Ranges seen from a Coastal GasLink Pipeline construction road.

Energy · Canada

CAD 14.5 billion

Coastal GasLink Pipeline

Approximately $10.59 billion

Research Infrastructure European Spallation Source, Lund, Sweden - Aerial View

Space mission · Sweden

€1.843 billion

European Spallation Source

Approximately $2.45 billion

Natural gas pipelines and LNG terminals around the world.

Energy · Australia

$29 billion

Wheatstone LNG foundation phase

2017

Space mission · United States

$1.4 billion

Spallation Neutron Source at Oak Ridge

2006

This is a photo of the Rampion offshore wind farm, off the coast of East Sussex on a calm day, taken from a plane

Energy · United Kingdom

£1.3 billion

Rampion Offshore Wind Farm

2018

Approximately $1.76 billion

Two of the Atacama Large Millimeter/submillimeter Array (ALMA) 12-metre antennas gaze at the sky at the observatory’s Array Operations Site (AOS), high on the Chajnantor plateau at an altitude of 5000 metres in the Chilean Andes. Eight antennas have been installed at the AOS since November 2009. More antennas will be installed on the Chajnantor plateau during the next months and beyond, allowing astronomers to start producing early scientific results with the ALMA system around late 2011. After

Space mission · Chile

$1.4 billion

Atacama Large Millimeter/submillimeter Array

2013

Port of Miami Tunnel entrance from MacArthur Causeway

Road or highway · United States

$1.113 billion

Port of Miami Tunnel

2014

Port · Nigeria

$1.5 billion

Lekki Deep Sea Port

2023

Stadium · United States

$558 million

Golden 1 Center

2016

Energy · United Kingdom

NOK 2 billion

Hywind Scotland floating wind farm

2017

Approximately $241.79 million

This image shows Vera C. Rubin Observatory, a Program of NSF’s NOIRLab, beneath a late-twilight sky. Rubin is being built to conduct the Legacy Survey of Space and Time (LSST). This survey will observe the entire visible southern sky every few nights over the course of a decade, capturing about 1000 images of the sky every night and giving us a new view of our evolving Universe. The LSST is set to probe four areas of science, one of which is mapping the Milky Way to answer questions about its st

Space mission · Chile

$571 million

Vera C. Rubin Observatory

2025

Aerial view of the London Heathrow Airport with several British Airways planes at Terminal 4

Airport · United Kingdom

£200 million

Heathrow Terminal 4

1986

Approximately $293.17 million

The entrance of the departure hall of London Heathrow Terminal 2 – The Queen's Terminal, London, England, UK.

Airport · United Kingdom

£2.5 billion

Heathrow Terminal 2 redevelopment

2014

Approximately $3.91 billion

London Gateway Container Terminal at Sunset

Port · United Kingdom

£1.5 billion

London Gateway initial port development

2013

Approximately $2.47 billion

Construction of Balagtas station in 2022 along P. Atienza Street, Longos, Balagtas boundary - Sitio Karuyan, Longos - boundary Santa Cruz Subdivision Burol 1, Balagtas (where the New Balagtas Station is 90% finished); featuring also is the Old pre-WWII NIA irrigation structures canals along the alley and the Ipomoea aquatica plantations in the Philippines - paddy fields)

Railway · Philippines

PHP 873.6 billion

North–South Commuter Railway

Approximately $15.19 billion

Space mission · India

INR 2.5 billion

Chandrayaan-3

2023

Approximately $30.27 million

Kosciuszko Bridge over Newtown Creek between Brooklyn and Queens, New York City in 2025

Bridge · United States

$873 million

Kosciuszko Bridge twin-span replacement

2019

Artist's rendering of the Space Launch System Block 1 sitting on Launch Pad 39A with the Orion spacecraft at sunrise.

Space mission · United States

$23.8 billion

Space Launch System programme, FY2012–2025

2022

Space mission · United States

$93 billion

NASA Artemis campaign, FY2012–2025

This drone photograph shows ESO’s Extremely Large Telescope in late 2025, during its construction.

Space mission · Chile

€1.45 billion

Extremely Large Telescope

Approximately $1.57 billion

The interior of the Jakarta International Stadium, Jakarta, Indonesia, during the 2023 FIFA U-17 World Cup group stage match, between South Korea U-17 football team (KOR) vs. the United States U-17 soccer/football team (USA).

Stadium · Indonesia

IDR 3712.7 billion

Jakarta International Stadium

2022

Approximately $250.02 million