BudgetGuessr rankings

The most expensive megaprojects from Italy in our catalogue

The 14 most expensive of 14 built and under-construction megaprojects in Italy in the BudgetGuessr catalogue, ranked by documented cost in US dollars.

Ranking

  1. 1The Öresund Bridge from underneath

    strait of Messina Bridge

    2025 · Bridge$15.29 billionOn hold
  2. 2Sezione tipo di galleria della Nuova Linea Torino Lione

    Mont Cenis Base Tunnel

    2026 · Tunnel$12.54 billionUnder constructionEstimate
  3. 3Exploratory Tunnel Aica–Mules

    Brenner Base Tunnel

    2007 · Tunnel$11.39 billionUnder constructionEstimate
  4. 4La ferrovia Milano-Bologna ad alta velocità, affiancata all'Autostrada del Sole, nel territorio comunale di Pieve Fissiraga

    Milan–Bologna high-speed railway

    2010 · Railway$10.54 billionEstimate
  5. 5Bahnhof Bologna Centrale

    Bologna–Florence high-speed railway

    2010 · Railway$8.88 billionEstimate
  6. 6Stazione Aeroporto di Linate della linea M4 a gennaio 2016. Foto di prosugno

    Milan Metro Line 4

    2024 · Railway$2.49 billion
  7. 7Brescia Metro train photographed in March 2013

    Brescia Metro

    2013 · Railway$858.74 million
  8. 8BO Bologna via Rizzoli

    Bologna tramway network

    Railway$838 millionUnder construction
  9. 9Palazzo Lombardia.

    Palazzo Lombardia

    2010 · Skyscraper$530.29 million
  10. 10Motorway A22 in Bolzano

    Autostrada A22

    1974 · Road or highway$373.65 million
  11. 11via Walter Fillak, parco memoria

    Genoa-Saint George viaduct

    2020 · Bridge$230.72 million
  12. 12View of the Juventus Stadium in Turin, Italy, before Juventus FC vs Real Madrid CF game, 2013-14 UEFA Champions League group stage, 5th of November 2013.

    Juventus Stadium

    2011 · Stadium$215.75 million
  13. 13Ponte della Costituzione in Venice, which connects the railwaystation with Piazzale Roma

    ponte della Costituzione

    2008 · Bridge$17.06 million
  14. 14Das Mapei Stadion während eines Serie A Spiels zwischen Sassuolo Calcio und Parma Calcio im Januar 2026

    Mapei Stadium - Città del Tricolore

    1995 · Stadium$15.35 million

How this ranking works

This is a curated catalogue, not an exhaustive list of every megaproject. Projects are ordered by their recorded US-dollar equivalent; each detail page shows the source amount and any currency conversion. Figures are not adjusted for inflation, and construction bills, estimates, and programme costs can have different scopes. Unbuilt proposals and cancelled projects are excluded.

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