From a day out at Dan-yr-Ogof Caves a couple of years ago - they have lots of dinosaurs there too (and my immediate response to the sign for this particular one was 'TIS!')
Modern communication - my daughters' Face Timing each other, one downstairs and the other upstairs.
We needed to store a large part of the contents of our house last year when we were having some major building works done - hundreds of orange doorways leading to storage units of varying sizes.
(We still have stuff in storage, but have downsized to a much smaller unit!).