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The U.S. Botanic Garden is back with their annual holiday and they’re paying homage to the most famous train stations in the country.

It’s not quite clear to me why trains and Christmas are traditionally paired. Some sources say it’s because model train sets used to be a popular Christmas gift, others say they’re popular because of stories like The Polar Express or the Thomas the Tank Engine series. Regardless of their origin, they’re sentimental toys for all ages and now is your chance to see them on display at North America’s oldest Botanic garden.

On display are 31 train stations with model trains running on tracks around the exhibit. Every super detailed train station model is made entirely of plant parts and these mini works of horticulture architecture will inspire you to go home and start a garden of your own. Most stations are modeled after famous structures across the country, accompanied by some fantasy stations like the North Pole and Dino Depot for the kiddos. There is something from every neck of the woods wether you come from Detroit, Michigan or Maui, Hawaii.

The U.S. Botanic Garden is free, all the time, as is the train show, which will be on display until January 1, 2019. If you need another reason beside the handcrafted train station models to visit the garden, check out their schedule for the holiday concert series that runs through the month of December.