This is the Sapporo Pagoda located in the Strolling Pond Garden of the Portland Japanese Gardens. This was a special evening event for those with photography passes where the various lanterns throughout the gardens were lit and the gardens themselves were open until 9 pm, after sunset.
The place has a very different feel past dark. It's still as tranquil, but the atmosphere feels more magical with the lanterns lit and located throughout the forest and along the Strolling Pond.