10 trips everyone should take in their lifetime

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The Northern Lights are a must-see.

The INSIDER Summary:

• TripAdvisor compiled the world's most iconic destinations in its TripIndex Experiences of a Lifetime.
• Angkor Wat is the most affordable option at $2,971 for two people for a week.
• At $9,364, Santorini is the most expensive.

It's time to take those Pinterest boards and bucket lists and turn them into reality.

TripAdvisor, a travel planning and booking site, announced its TripIndex Experiences of a Lifetime, which lists 10 of the world's most iconic sites, as well as their total costs.

Here's a breakdown of what a one-week trip for two costs for 10 of the most sought-after spots around the globe.