As model trains come out of storage to circle the Christmas tree, groups across Lancaster County open their doors to share their elaborate displays with the public.

Many of these model train set-ups show communities from decades ago. Yet the miniature railroad layouts continue to expand with new donations and new projects.

Here are seven to check out this holiday season:

All Aboard Railroad

What: A display of American Flyer trains featuring up to 20 trains and more than 2,000 feet of track, plus light displays every half-hour.

When: Saturdays and Sundays from 1-4 p.m. through Dec. 31.

Where: Bart’s Pneumatics Corp., 1952 Landis Valley Road

Cost: $6 for adults and $4 for kids 3 to 11.

More information: 717-392-1568 or bartspneumatics.com.

Columbia & Susquehanna Model Railroad

What: Train layout that depicts the borough as it looked between the 1920s and 1940s. The HO-scale set-up features more than 2,000 square feet and a new area that almost doubles the layout.

When: Weekends from 1-4 p.m. through Jan. 6.

Where: 21 N. Second St., Columbia.

Cost: Free, but donations are welcome.

More information: tonysegro.com/cola.html.

Elizabethtown Public Library

What: Interactive train display with up to 20 trains and about 40 buttons to push.

When: Tuesdays and Thursdays from 6-8 p.m. and Saturdays from 10 a.m. to 4 p.m. through Dec. 29. Private showings are available. Call 717-367-7467 for more information.

Where: 10 S. Market St., Elizabethtown.

Cost: $2 donation per person is requested.

More information: etownpubliclibrary.org/trains.

Garden Spot Village Train Display

What: O-gauge and HO gauge layout with more than 600 feet of track, featuring a talking Thomas the Tank Engine and more.

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When: Saturdays in December through Dec. 29, 1:30-4 p.m.; Also Wednesday, Dec. 27, 1:30-4 p.m.

Cost: Free, donations welcome.

Where: Garden Spot Village, 433 S. Kinzer Ave., New Holland.

More information: gardenspotvillage.org/events or 717-355-6000.

Manheim Historical Society Train Display

What: A model train layout in Manheim shows, in miniature, life in the borough in the late 1940s and early 1950s. Under-construction is a replica of Manheim Central’s football station.

When: Trains will be open Friday, Dec. 14 from 3-8 p.m., Saturday, Dec. 15 from 10 a.m. to 2 p.m.

Where: 210 S. Charlotte St., Manheim

Cost: Free. Donations are appreciated.

More information: manheimhistoricalsociety.org or 717-665-7989.

Masonic Village

What: Elizabethtown Model Railroad Club's multi-gauge display on 1,200 feet of track.

When: Saturday, Dec. 8, 11 a.m.-4 p.m.; Saturday, Dec. 15, 9 a.m.-4 p.m. In 2019, the display is open the first weekend of the month from January through April from 2-4 p.m.

Cost: Free.

Where: 1 Masonic Drive, Elizabethtown.

More information: mvemodelrrclub.com or 717-367-1121, ext. 33253.

The Short Line Model Railroad Club

What: Annual display of the Pennsylvania Reading Anthracite Lines, which features small towns, trains and operating equipment.

When: Saturdays and Sundays from 1-4 p.m. through Jan. 13.

Cost: Free, donations welcome.

Where: 11 S. State St., Ephrata.

More information: slmrc.com