Appledore Shipbuilders was founded in 1855 and the firm had one of the biggest enclosed ship-building facilities in Britain in the 1960s.

BBC: NEWS | UK | England | Devon | Potential buyers in shipyard talks

The Saeynaetsalo Town Hall of 1948-52 is cut into a hillside where irregularly ascending steps of masonry and earth and grass lead to an enclosed courtyard and the building's "crown, " the council chamber.

WSJ: Finnish Master Alvar Aalto | By Ada Louise Huxtable

It seems documentary-maker Chris Terrill has hit the jackpot again, building on the success of his previous studies of enclosed communities in Jailbirds and The Cruise.

BBC: The Ship

If you set off a good amount of this stuff in an enclosed environment like maybe a subway station or an office building then that place could be shut down for 300 years.

FORBES: Fact and Comment