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Las Vegas Sands datacentre
The Las Vegas Sands Corporation runs two casino resorts in the gambling mecca, the Venetian and the Palazzo.
The two establishments run off the same infrastructure, which uses 300 servers to support more than 11,000 suites and rooms, 3,000 slot machines and 200 gambling tables, and run nine websites.
MORE DETAILS: Inside a Las Vegas casino resort datacentre
The bulk of the Venetian and Palazzo's core systems run on six IBM's iSeries servers (pictured), formerly known as AS/400s.
Image: David Meyer
Telecity Powergate datacentre
TelecityGroup's Powergate co-location facility in west London (above) is used as a spillover capacity site for data from the company's five Docklands-based and two City-based datacentres.
The facility has a PUE rating of around 1.65. As a co-location provider, Telecity is not able to choose the hardware in the facility, but it has some control over how it can increase energy efficiency.
It offers varying levels of security to companies, ranging from open racks (left) to cages (centre back) to cages with biometric and/or password protection (right).
TAKE THE TOUR: Inside Telecity's co-location datacentre
Image: Jack Clark
PGS European datacentre
Petroleum Geo-Services (PGS) operates its European datacentre in Weybridge, Surrey. The facility crunches seismic data gathered by a fleet of ships spread across the globe.
READ MORE: Inside an oil industry datacentre
The datacentre, dubbed a "megacentre" by the firm, was opened on November 2008 and replaced a 15-year-old facility. It was designed by Keysource, a datacentre specialist contractor, and has a PUE rating of 1.148. This was achieved in part through the use of cooling techniques such as filter bags (pictured), which filter warm air and send it back through a water-cooled gate for reuse.
Image: Jack Clark