Barcelona, Spain
Las Ramblas, a famously picturesque tree-lined promenade in the heart of Barcelona that attracts countless tourists, is now so busy that walking it is less of a ramble and more like crowd-surfing, Responsible Travel says.
“Barcelona has a population of 1.6 million, yet gets around 32 million annual visitors,” Francis says. Unhappy Catalan residents began taking to the streets to complain in 2017.
The city’s Strategic Plan for Tourism 2020 seeks to curb cruise-ship numbers and shut down unregulated hotels and unlicensed rickshaws, but for now, problems persist.