Did you know that caretakers of some of the country's most famous ancient monuments do not allow visitors to wear high heels? I didn't either, so for those of you so inclined, here is a PSA should you visit one day. Authorities put the ban in place in 2009, since sharp-soled shoes were adding to the wear and tear of national treasures.

“Female visitors must wear shoes that do not wound the monuments,” Eleni Korka, Director of Greek Prehistoric and Classical Antiquities, told the Daily Mail in 2009. “These monuments have a skin that suffers and people must realize that.”

The “no heels” rule is not the only one tourists will run into while sightseeing in Greece, either. If you’re planning on going to some ancient sites, don't bring in any food or drink (and that includes gum).