(CNN)There are two types of vacations.
The ones we take once or twice a year to recharge and reconnect with those close to us -- maybe a quick getaway to a resort somewhere hot or a road trip to Disney with the kids.
Then there are the ones you spend your whole life dreaming about, whether it's a luxury African safari or a road trip down Italy's Mediterranean coast.
The latter is the inspiration behind TripAdvisor's new list of 10 trips of a lifetime, compiled based on user votes.
Warning: Seasoned travelers will scoff at some of the picks.
"Santorini? Been there done that -- 20 years ago."
1. See the Northern Lights
The greatest light show on earth. Hands down.
But before you get too lost in the beauty of the Northern Lights, it's worth remembering there are some pretty impressive forces at work behind the scenes.
Caused by collisions between gaseous particles in the Earth and sun's atmospheres, the Northern Lights commonly appear during the winter months in northern countries like Canada, Finland, Alaska, Greenland, Norway, Sweden and the place that seems to be on everyone's travel wish list right now, Iceland.
That includes Akureyri, which topped Lonely Planet's "10 Best Places in Europe" list in June.
Less than 100 kilometers from the Arctic Circle, it's Iceland's second-largest city and a great spot to watch the aurora borealis dance through the sky.