Dubrovnik, the coastal Croatian town that you may recognize from Game of Thrones, broke its own record for tourists last year, welcoming an unprecedented 1,271,657 visitors. That was a seven-percent increase over 2017, which had been a record-setting, million-plus year too. (We mentioned that its famous walls were in Game of Thrones, right?)

But Dubrovnik is desperately trying to keep up with the increase in foot traffic and foreign visitors and Instagram filters, especially in the already cramped streets of the UNESCO-listed Old Town. Last summer UNESCO itself warned that city officials needed to consider the “sustainable carrying capacity” of the city when it came to the number of visitors, especially the hundreds of thousands who come in on cruise ships.