In 2018, work on the project was stopped after it was discovered that DC and US federal preservation rules were violated in the demolition of the building's interior.

[8] This ranges from an elaborate interactive room-sized globe to playful poetry written on bathroom walls.

[9][10] Speaking Willow, an interactive, motion-detecting tree sculpture, is an exhibit created by Rafael Lozano-Hemmer that whispers to visitors in hundreds of different languages as they enter the museum.

[13] In March 2022, Planet Word opened Lexicon Lane, a permanent exhibit where visitors can solve language-related “cases”.

[14] Located on the third floor of the museum, the exhibit is set up to look like a small village, within which visitors have an hour to solve a mystery by figuring out the answers to language-related puzzles and riddles.