Overtourism was the travel buzzword of 2019, as destinations around the globe, from the hiking trails of Machu Picchu to the canals of Venice, battled the impact of throngs of visitors.
An airplane cabin's not a great place for indulging in "me-time" -- after all, you're crammed into a small space with a lot of strangers -- but you hope you can eat, sleep and relax en route to your destination without fear of being watched.
In January 2020, the gigantic Costa Deliziosa cruise ship slipped its moorings in the Italian city of Venice and headed out into the Adriatic Sea on an around-the-world voyage. Around 2000 passengers were on board for what they hoped would be the trip of a lifetime.
Most cruise passengers have made their way back home, and the vast ships that once ferried them from port to port are moored up or back on the water, relocating for the next stage in their journeys.