The REMEMBER command is available to all players. It allows you to remember a location you have visited. Once a location is remembered, you can view it or teleport to it through various means, such as the Portal spell.

Enter REMEMBER <#1-20> to add your current location to your memory. 

Enter REMEMBER alone to see a list of locations in your memory. 

You have a maximum of 10 remember slots and this increases to 20 if you have the Eidetic Memory ability.

Some locations won't allow you to remember them.