It has been fabricated off-site and delivered in seven sections where it has been welded together, received its final aluminium silver paint finish and had its fully enclosed glazed walkway put in place ready for the lift.

BBC: Motorway to close for new bridge

Unbeknownst to most sunbaked tourists, the Happiest Place on Earth is an enclosed universe of monitoring systems that continually cull customer surveys and use computer modeling to predict everything from how many people will eat at any one time to passenger loads on the Jungle Cruise boats.

FORBES: Hurry Up And Wait

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