Gizmag recently took a journey through the impressive World Expo 2015, which opened in Milan last month and runs until the end of October. World expositions date back to 1851 in London and the 2015 event features 145 participating countries, 53 of which have their own architecturally designed pavilion. When we talk about "pavilions" we're talking about huge structures that cost millions to build and transport visitors through a series of compelling and beautiful interactive experiences.

This year's Expo is dedicated to sharing of diverse and innovative ideas under the theme: "Feeding the Planet, Energy for Life." Many countries put their best thinking caps on to present ideas of how we can address the big questions surrounding global food supply and the sustainability of the planet, while others simply used the event as a platform to promote their tourism and other industries.

The organizers sum up the 2015 extravaganza as follows: "For the first time in its centuries-old history, the Expo will not simply be an exhibition of human progress, but the opportunity to promote discussion and cooperation between nations, organizations and businesses to develop joint strategies to improve the quality of life and support the environment. In fact, the Universal Exposition has always represented an opportunity to show the best of the various Countries to an audience of millions of people from all over the world."

Located half an hour outside of the city center of Milan, the Expo 2015 grounds cover more than one million square meters (10.75 million sq ft), incorporating an array of impressive architectural projects and unique landscapes that represent different cultural identities.

In addition to the 53 pavilions, visitors can explore the five thematic zones which include: Pavilion Zero; The Future Food District; Children’s Park; Biodiversity Park and Arts and Food. These explore the story of mankind and food; the current paradox of famine and obesity, shortage and abundance and ideas of what future food supplies might look like.

The event also features a series of "Clusters" which are shared exhibition spaces dedicated to smaller countries and regions from around Italy. These Clusters host a variety of different traditions from classic food sources such as rice, coffee, cocoa, spices, fruit and vegetables, cereals and tubers. In some of the clusters visitors get the opportunity to taste local food cuisine and learn about theses cultures.

We'll soon be bringing you an in-depth look at our top 10 must see pavilions, but in the meantime be sure to head to our special Expo Milano 2015 photo gallery for a taste of this wonderful journey of innovation, sustainability and architecture.

Expo 2015 is open to the public from 10 am to 11 pm seven days a week until 31 October 2015 and an adult ticket will set you back €39 (US$44).

For more information on the event visit Expo Milano 2015

The China Pavilion puts on a spectacular LED light display (Credit: Edoardo Campanale/Gizmag)

The German Pavilion at night time (Credit: Edoardo Campanale/Gizmag)

Outside of the impressive French Pavilion (Credit: Edoardo Campanale/Gizmag)

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