The Crystal is a building on the Royal Victoria Dock in east London that contains a permanent exhibition about sustainable development. It is owned and operated by Siemens. It is part of the Green Enterprise District policy that covers much of East London. 

The surrounding landscape was designed to be a sustainable urban landscape to help encourage a shift in the broader social ideology, making ‘sustainability’ more attractive and allowing people to participate in social activities within the site, which includes local food programmes and community gardens to help foster this principle.