Calcelmo's Tower is a location in The Elder Scrolls V: Skyrim, inside Calcelmo's Museum in Understone Keep in Markarth. Inside the Tower is a large study and it is the location of Calcelmo's Stone. It can be reached after climbing the stairs, going through the study.
Calcelmo's Stone is a stone tablet with Falmer and Dwemeris engravings that can be found at Calcelmo's Tower. The Dragonborn can interact with the stone tablet while completing the "Hard Answers" quest by copying down the Falmer Translation Guide. To copy the Guide, the Dragonborn must possess both a Roll of Paper and charcoal. Both of these items can be found in the room directly behind the Dragonborn while facing the front of the stone tablet. Once this is done, they receive Calcelmo's Stone Rubbing.
- Chimarvamidium (Heavy Armor Skill Book) Inside the Tower, past the first interior door that you enter, on a table to the left.
- Twin Secrets (Enchanting Skill Book) On the table that Aincantar is sitting at, across from the Arcane enchanter.
- Calcelmo's Stone is based on The Rosetta Stone, an engraved stone issued at Memphis, Egypt which helped Jean-François Champollion decipher the first hieroglyphs.