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

1733 projects

Don Mills Station Platform, November 2021

Railway · Canada

CAD 1 billion

Toronto — Sheppard

2002

Approximately $636.8 million

Railway · Canada

CAD 5.6 billion

Toronto — YUS — Yonge to Richmond Hill

2030

Approximately $4.47 billion

Stazione della metropolitana di Torino, fermata Spezia.

Railway · Italy

€1.828 billion

Turin — Line 2 — Line 2 -phase 1-2

2032

Approximately $1.92 billion

Railway · Canada

CAD 2.954 billion

Vancouver — Millennium — Broadway

2027

Approximately $2.11 billion

Railway · Austria

€340.29 million

Vienna — Line 2 — Line 2 extension

2013

Approximately $451.95 million

ehem. Stadtbahn - Teilbereich der heutigen U4

Railway · Austria

€2.319 billion

Vienna — U2/U5 cross

2030

Approximately $2.62 billion

Railway · Poland

PLN 10 billion

Warsaw — Line 2

2026

Approximately $2.66 billion

Piotr Krajewski - Fotografia Architektury / Architectural Photography

Railway · Poland

PLN 1.4 billion

Warsaw — Line 2 — Line 2 extension to Bródno

2022

Approximately $314.06 million

Red line train, Gallery Place station, Washington, D.C., the United States

Railway · United States

$243.809 million

Washington, D.C. - Glenmont Outer (B)

1998

Washington Metro, CAF 5026 railcar leads a Green Line train to Greenbelt at Fort Totten station lower level in Washington DC.

Railway · United States

$595.5628 million

Washington, D.C. - Greenbelt Mid (E)

1993

Rolling stock of Wuhan Metro Line 1, No. A01

Railway · China

CNY 2.361 billion

Wuhan — Line 1 — Line 1 Phase 3 Hankou North

2014

Approximately $384.31 million

NASA’s X-59 quiet supersonic research aircraft sits on the ramp at Lockheed Martin Skunk Works in Palmdale, California during sunrise, shortly after completion of painting. With its unique design, including a 38-foot-long nose, the X-59 was built to demonstrate the ability to fly supersonic, or faster than the speed of sound, while reducing the typically loud sonic boom produced by aircraft at such speeds to a quieter sonic “thump”. The X-59 is the centerpiece of NASA’s Quesst mission, which see

Space mission · United States

$902.4 million

X-59 Low-Boom Flight Demonstrator

2025

Train of Line 14 in Xi'an Metro, May 3 2023 (New JC)

Railway · China

CNY 13.889 billion

Xi'an — Line 9

2020

Approximately $2.01 billion

A train on Zhengzhou Metro Chengjiao Line approaching Mengzhuang Station

Railway · China

CNY 20.608 billion

Zhengzhou — Line 3 — Line 3 Phase 1

2018

Approximately $3.11 billion

Train 0427 on Zhengzhou Metro Line 4 approaching CBD Station

Railway · China

CNY 19.743 billion

Zhengzhou — Line 4

2023

Approximately $2.79 billion

111 West 57th Street, New York, New York

Skyscraper · United States

$1.5 billion

111 West 57th Street

2021

3 World Trade Center (left) and 4 World Trade Center (right) from the 9/11 Memorial Pool (lower center), Manhattan, New York, USA

Skyscraper · United States

$2.75 billion

3 World Trade Center

2018

432 Park Avenue, a super-slender residential tower in Midtown Manhattan.

Skyscraper · United States

$1.25 billion

432 Park Avenue

2015

L'American International Building (gratte-ciel de Manhattan, sis au n°70 Pine Street, à New York).

Skyscraper · United States

$7 million

70 Pine Street

1932

HSBC Building, 8 Canada Square, Canary Wharf, London, UK

Skyscraper · United Kingdom

£500 million

8 Canada Square

2002

Approximately $749.73 million

Railway · United States

$1.9 billion

AirTrain JFK

2003

Exterior of Allegiant Stadium in May 2021.

Stadium · United States

$1.9941 billion

Allegiant Stadium

2020

Daylight view of Allianz Arena in Munich

Stadium · Germany

€340 million

Allianz Arena

2005

Approximately $422.56 million

Angel Stadium during the Los Angeles Angels' 2003 opening-day game against the Texas Rangers

Stadium · United States

$24 million

Angel Stadium of Anaheim

1966