7 of the most unique national parks in the US, according to someone who's been to all 50 states

Yellowstone National Park in Wyoming changes with the seasons.Bruce Beck/Shutterstock

• I've been to all 50 states, and I can confirm unique national parks are scattered across the US.
• Some of the most unique national parks I've visited are Grand Tetons and Saguraro.

Not every trip needs to be a luxurious expenditure — and with airfare cheaper than it was a year ago, now's a good time to explore somewhere new.

If you're looking for somewhere unique and affordable, consider a national park.

Having been to all 50 states and dozens of national parks, here's what I feel are the most unique national parks in the US.