From the IHT:
A section of bright yellow natural gas pipe commands center stage at the Venice Biennale's International Architecture Exhibition this year. Sixty-three meters long and 1.2 meters in diameter, it snakes down the Castello Gardens from the German to the Russian pavilion.
Gaasitoru/Gas Pipe is the exhibit of Estonia, and draws attention to the controversial project to construct a direct pipeline between Russia and Germany. The pipe would run along the Baltic seabed, which could have major political and ecological implications for neighboring countries.
But the Estonian exhibit also highlights the general issue of energy, which will probably be the biggest single factor in how the architecture of the 21st century develops