Halls are decked inside and outside at the Connecticut Trolley Museum with more than 15,000 lights for this annual event. Guests board enclosed trolley cars for a ride down a tunnel of lights as they sing traditional Christmas carols with their trolley car operators.

For an open-air view of the Tunnel of Lights, one open sleigh car is lit up entirely with holiday lights. Be sure to dress warm and bring blankets!

Inside, the visitor center is decorated like a winter wonderland with multiple model train layouts and lights galore.