Floating Fortresses is an insert set in 2011 Topps Allen and Ginter.
Gallery[]
Checklist[]
| Number | Ship |
| 1 | HMS Vistory |
| 2 | Mary Rose |
| 3 | Henri Grace a Dieu |
| 4 | Michael |
| 5 | Sovereign of the Seas |
| 6 | HMS Indefatigable |
| 7 | Mahmudive |
| 8 | Le Naploleon |
| 9 | USS Merrimack |
| 10 | USS Monitor |
| 11 | Lave |
| 12 | La Gloire |
| 13 | HMA Warrior |
| 14 | Solferino |
| 15 | USS Cairo |
| 16 | HMS Dreadnought |
| 17 | USS Texas |
| 18 | HMS Devastation |
| 19 | HMS Revenge |
| 20 | USS Pennsylvania |
| Base Set |
| Insert Sets |
| Mini EXT - Baseball Highlights - Autographs - N43 - Book Cards - Cabinet Cards - Cut Signatures - DNA Relics |
| Relics - Rip Cards - Employee Autographs - Floating Fortresses - Hometown Heroes - Minds that Made the Future |
| Animals in Peril - Fabulous Face Flocculence - Flora of the World - Fortunes for the Taking - Penultimancy |
| Step Right Up - Uninvited Guests - Most Mysterious Figures - Ascent of Man - Carnival Relics - State Map Relics - Terrorabilia |
| Other Information |
| Card Images - Notable Singles - Box Breaks |
| Other Topps Allen and Ginter Releases |
| 2006 - 2007 - 2008 - 2009 - 2010 - 2012 - 2013 - 2014 - 2015 - 2016 - 2017 - 2018 - 2019 |