it is ireland of course
It took 8 years to build Fort Sumter.
a pillow fort
Google "how to build wooden fort", or something similar. Use the plans to build the fort, but instead of building it on the ground, make the foundation a number of stilts planted several feet into the earth. Build the fort on top of the stilts. Be sure to build a ladder or stairs to get in.
The same way you build an 'adult fort', just down size it a little!!
Fort Wayne :)
Fort Necessity
You need to be creative! Use a sturdy blanket or two and tuck them in between the mattress and the springs then tuck their other end in where you think it makes the most fort-like form. Be sure to leave a doorway area and if you plan to have food inside your fort, be sure to get permission to do so.
"How to Make Red Fort With Thermocol"
Fort Necessity
Fort Necessity
Fort Mandan