Mysteries at the Museum: Season 21
This season started on September 5, 2018. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Lord Lucan, World's Greatest Drag Racer and Lighthouse Lifesaver · 60 min | |
| 2 | Frightening Foo Fighters, Bird's Eye Spy and Coral Castle Mystery · 60 min | |
| 3 | Titanic Baker, Psychic Scammer and Cuban Swimmer Crisis · 60 min | |
| 4 | Ghost of Katie King, Lake Erie Monster and Secret Stowaway · 60 min | |
| 5 | Killer Space Germs, The Yeti's Hand and The Bug That Changed History · 60 min | |
| 6 | Murder at Greystone, Paulding Light and Tumbleweed Tycoon · 60 min | |
| 7 | Skyscraper Seance, Frozen Woman and Black Widow · 60 min | |
| 8 | Doppelgangers, Salem's Curse and White House Attack · 60 min | |
| 9 | Knocking Ghost, Superman Saves the Day and Sleeping Dragon · 60 min | |
| 10 | Ball of Mystery, Dark Side of the Moon and Fakespeare · 60 min | |
| 11 | Ancient Alien, Killer's Curse and Ground Zero Ship · 60 min | |
| 12 | Buffalo Bill Burial Riddle, First Dino Egg and Arctic Murder Mystery · 60 min | |
| 13 | Geostorm Inferno, The Typo That Won the War and The Death of Princess Di · 60 min |
