Why are these unusual attractions so popular?
Most tourist attractions are popular for obvious reasons. They are defined by superlatives — the biggest, oldest, most beautiful — or they benefit from heavy promotion by a city or country's tourism stakeholders. And then there are those attractions that have gained fame for less obvious reasons.
Some of these offbeat places are so odd or unusual that you can't help but want to see them. Social media has certainly helped their causes, but Facebook and Instagram aren't the only influencers. The popularity of many strange and unexpected attractions predates the rise of YouTube and Facebook when promotion consisted of word of mouth, physical guidebooks and perhaps the occasional feature in a magazine or newspaper.
Here are 10 of the world's most-unexpected attractions.