Amtrak/AP
But there is still something darn romantic about traveling by train - stretching out your legs, gazing out the window as the forest or sea slips by you. It can be casually luxurious in a way flying or driving just can't compete with.
And the beauty you can see out the window as you cut your way across the US can be breathtaking, as evidenced by Amtrak's Instagram account, which showcases the best photos taken by its passengers. The photos span from Seattle to Florida, and from snow to sunshine.
Here are our favorite Amtrak photos that show the enduring romance of trains: