Even though ice might be one of the few things that everyone has in their fridge nowadays, this wasn’t always the case. Ice was actually a rare commodity back in the 18th-century and only the richest people could get access to it during the summer. This is why there were special ice houses hidden all throughout London back during the Industrial Revolution. However, no one expected to find a massive ice house hiding right beneath the streets of London.
20. Precious Ice

As previously mentioned, ice was really hard to find during the hot summer days back in 18th-century London. This is why people would chop huge blocks of ice from cool places and then bring them back to London and keep them in special ice houses.