Eucharistic Miracles of the World

A clear guide to the international exhibition designed by Saint Carlo Acutis, explaining what Eucharistic miracles are, where they happened, and how a teenage programmer turned them into a global, digital mission.

Miracles from every continentParish exhibition & online catalogue

What are Eucharistic miracles?

In every valid Mass, the Church teaches that the bread and wine truly become the Body and Blood of Jesus Christ. This transformation, called transubstantiation, usually remains hidden under the normal appearances of bread and wine.

From time to time, however, God permits extraordinary, visible signs to confirm this invisible reality. These are what the Church calls Eucharistic miracles. They can include:

  • Hosts that bleed or show human tissue
  • Consecrated wine that turns to blood
  • Hosts that remain incorrupt for centuries
  • Miraculous healings connected to Eucharistic devotion
  • Remarkable signs or protections linked to the Blessed Sacrament

Each alleged miracle is carefully investigated by the Church. Only when the evidence is solid and there is no natural explanation can it be recognised as a Church-approved Eucharistic miracle.

Carlo's international exhibition

As a young teenager, Carlo Acutis decided to put these miracles at the service of evangelisation. Around the age of eleven, he began researching Church-approved Eucharistic miracles from around the world and compiling them into a single, accessible resource. Over the course of several years, he:

  • Collected more than 130 documented Eucharistic miracles from different centuries and countries.
  • Wrote concise historical summaries and theological explanations for each miracle.
  • Prepared high-quality poster panels and a website so that parishes and shrines could share the exhibition worldwide.

The result is the “Eucharistic Miracles of the World” exhibition: a travelling display and online catalogue that has been translated into many languages and hosted in thousands of parishes, shrines and cathedrals across the globe.

For Carlo, this project was not about curiosity or sensationalism. It was a way to bring people back to the heart of the faith: Jesus truly present in the Eucharist.

Where did these miracles happen?

Carlo's exhibition brings together miracles from many centuries and cultures. They span the early Church, the Middle Ages, and modern times, across multiple continents. Among the countries represented are:

Argentina
Austria
Belgium
Brazil
Colombia
Croatia
Egypt
France
Germany
India
Italy
Mexico
Netherlands
Peru
Philippines
Poland
Portugal
Spain
Switzerland
United States

The official exhibition and website include detailed panels on each miracle, often with dates, scientific studies, photographs, and the local devotional tradition that grew around it.

Exhibition panels and downloadable resources

The exhibition was originally created as a set of large, full-colour panels that could be printed and displayed in churches, schools and conference centres. Each panel presents:

  • A brief story of the miracle
  • Historical context and Church recognition
  • Photographs and artwork related to the shrine or relics
  • A short reflection to help visitors pray and reflect
Parish exhibition

Many dioceses and Catholic organisations can provide ready-to-print PDF panels of Carlo's exhibition for local use. Parishes often display them during Eucharistic congresses, Forty Hours devotion, or parish missions focused on the Blessed Sacrament.

Online gallery

The official website hosts the full catalogue as an online gallery, with each miracle presented on a dedicated page. From there, many organisers request high-resolution PDFs for printing local displays.

On your own site, you can link to the official exhibition and offer simple printable resources (for example, a one-page summary, a “top 10 Eucharistic miracles” sheet, or a guide to praying before the Blessed Sacrament).

How Carlo built the exhibition as a teenage coder

Carlo was not only devout; he was also genuinely talented with computers. Friends and adults alike described him as a kind of self-taught “computer genius”. For the Eucharistic miracles project he:

  • Learned HTML and basic web programming so he could build and update the site himself.
  • Used simple graphics software to lay out the panels with images, titles, and clear, readable text.
  • Organised the content by country and date, making it easy for visitors to browse.
  • Tested and refined the site with help from adults who were impressed by his professionalism.

Importantly, the technology was always in second place. For Carlo, the point was not to show off his skills but to serve the Church. He once joked that people queue for concerts and football matches, but rarely line up for the Eucharist – the exhibition was his way of changing that.

Why Eucharistic miracles matter today

In an age of doubt, distraction and constant screens, Eucharistic miracles are like bright signposts pointing back to the heart of the faith. They do not replace faith, but they can:

  • Reawaken amazement at the Real Presence of Jesus in the Eucharist
  • Encourage deeper reverence at Mass and during adoration
  • Offer powerful stories for preaching, catechesis and youth ministry
  • Help those who struggle to believe that the consecrated Host is truly Christ

Carlo's exhibition – both in physical panels and online – has become one of the most effective tools for teaching about the Eucharist in recent decades. It combines clear theology, solid historical research and striking visuals in a way that speaks to both older and younger generations.