In just two months鈥 time, this vast building site will be home to the 200 pavilions that make up Hanover Expo. Here鈥檚 what鈥檚 going up where, and the city鈥檚 spectacular new rainforest dome.
From 1 June to 31 October, Hanover will be home to Expo 2000. Nearly 200 countries are building pavilions and, with just two months to go, the edge-of-town site is still a maze of scaffolding and ladders.

Dutch practice MVRDV鈥檚 sandwich-themed pavilion for the Netherlands is still propped with temporary supports, and The complex timber grid designed by Buro Happold with architect Shigeru Ban for the Japanese pavilion is only just taking shape. The only pavilion that looks like it will be ready on time is the 鈥渞ecycle bowl鈥 鈥 the Expo鈥檚 waste-sorting plant 鈥 being constructed for recycling specialist Dual System Deutschland with ETFE cladding on the walls and roof.

Based on the theme of regeneration, the Hanover Expo will feature permanent buildings. Taking them down at the end of the exhibition is not be sustainable, argue the organisers. So, alongside pavilions that will stay up after October are a number of other permanent structures, such as the granite-clad Expo offices, a grand new train station of marble and glass, and a bijou hi-tec tram station serving five new tramlines.

The pavilions are, as usual, quirky and innovative. Designs range from Fruto Vitas鈥 flower-themed structure for Venezuela, with giant orange and yellow petals providing the canopy, to Finland鈥檚 brutalist structure designed by Helsinki鈥檚 Arkkitehtitoimisto. The UK pavilion has been recycled from the last Expo 鈥 1998鈥檚 Lisbon 鈥 except this time, the 2700 m2 Branson Coates-designed structure will not feature pop-up Union Jack umbrellas.

For further details, visit the Expo web site at www.expo2000.de

Europe鈥檚 biggest building site

Hanover Expo 2000 is the largest construction site in Europe. Contractors are racing to finish pavilions on the 1.6 million m2 site in time for the 1 June opening. The theme for the Expo, which runs until the end of October, is recycling and the environment, so permanent structures are being built as part of the Expo.

The new tube

A 200 m glass-clad tube links the Expo entrance to a new, specially built train station. The tube was designed by Hamburg鈥檚 Architekten Goessler, which also designed the station.

Welcome to Germany

German designer ArtLab Studios has designed its national pavilion. Featuring a self-supporting concave glass facade and curving roof, it will feature 16 exhibits including a Viking longboat and part of a cliff from Germany鈥檚 highest mountain. A series of lightweight bridges will link the exhibits.

Tram fair

The best architecture of Expo 2000 is arguably the tram station by local architect Bertram Bunemann Partner, which worked with Ray Hole and Gordon Wilson on the Brazilian Rainforest Pavilion. Built for just 拢4m, the station provides a simple and elegant counterpoint to the wacky pavilions. Work started in August 1998 and finished this February. Structural engineer is Pfeifer and Partner and client is Uestra Hannoversche Verkersbetriebe.

Now arriving at Expo鈥

The Expo train station, Hanover-Messes/Laatzen, was designed by competition-winning Hamburg practice Architekten Goessler. The roof, which resembles that of Kansai airport in Japan, is supported by the tree structures that seem to be obligatory for major transport projects. The station was built by Hochtief and Siemens at a cost of 拢11m for the station building 鈥 拢21m including track.

The super bowl

The recycle bowl has been built for German recycling company Dual System Deutschland. Clad entirely in ETFE foil, the building will be used to sort waste from the Expo site for recycling.