Recently Obtaining a Library of Congress reader ID card as a souvenir was closed because it's "not about travel". There was also some discussion of whether or not Where to look up times for shows in London? is "about travel".
By the strictest definition the only questions that are about travel are questions about how to get from point A to point B. Questions about what to do at point B or how to do something at point B are off topic as are questions about "where to do X or Y" since asking where to do something isn't about how to get from point A to point B. In fact, whole swath's of tags are off topic using the strictest definition of travel. For example,
https://travel.stackexchange.com/questions/tagged/entertainment
But the Travel SE doesn't use the strictest definition of travel. And since the Travel SE doesn't provide formal criteria of what constitutes an on topic question it's up for interpretation and, imho, questions about how to do stuff in the destinations you're going to is entirely on-topic.
Maybe looking up movie show times in London is something you know how to do. Good for you - that doesn't mean everyone knows how to do it because, you know, not all of us live in London. If you think the "Where to look up times for shows in London?" question ought to be closed why should that be closed and OK we're all adults here, so really, how on earth should I use a squat toilet? not be closed?
Similarly, maybe the souvenirs you get on trips are more generic and bland. Maybe you're perfectly content with a "I (heart) NY" t-shirt as a souvenir of your trip. But maybe not everyone is and closing a question on how to get an admittedly obscure souvenir is, I think, similarly small minded. How is "getting a library of congress reader id card" off-topic and Can you still buy used panties in vending machines as a souvenir from Japan? on-topic?