But can a business be built upon an audience limited to those willing to watch excruciatingly real "reality TV"?
Built upon an embankment overlooking the Tigris, the Citadel once contained a prison, official buildings, gardens, a church, and a mosque.
Wales supplied the world with iron in its 19th-century heyday, when the industry was built upon an abundant local supply of ores, coal, timber and limestone.
Under its razor-sharp sheet metal, the XTS is built upon an evolved version of GM's Epsilon II platform that underpins the Buick LaCrosse, among other vehicles.
Built upon an island from which bridges stretched to other islands and to the mainland, the palace of a thousand small towers was undefended.
Now, however, it's not our dreaming mind that resembles a city; rather, our cities have to come to resemble our dreaming minds -- jumbled, chaotic, built upon an obscure system of nonlogical associations.
Among Palmela's most evocative spots is the ruin of the 12th-century Church of Santa Maria, built upon an ancient mosque and itself crumpled in the great earthquake of 1755.
Such change should not be feared, especially when the current status quo is built upon an unjust system that denies athletes their legal rights, forces them into difficult financial situations, and leaves them without proper long-term medical care.
Some expected it to be built upon an earlier plan by Senator Mitch McConnell of Kentucky, the Republican leader, who employed an arcane process to allow a debt limit increase to occur over the objections of Congress.
Many software development projects are built upon an underlying framework.
