For what it's worth, in the D&D game I run (which is set in the year 989 in the real world), the Ark is in the Axumite Empire (i.e. modern Ethiopia) stored underground (i.e. in a dungeon) and guarded by an angel powerful enough that not even the party that (temporarily) managed to conquer Axum and set themselves up as emperors has managed to gain access to the Ark.
Area 51
Obviously
For what it's worth, in the D&D game I run (which is set in the year 989 in the real world), the Ark is in the Axumite Empire (i.e. modern Ethiopia) stored underground (i.e. in a dungeon) and guarded by an angel powerful enough that not even the party that (temporarily) managed to conquer Axum and set themselves up as emperors has managed to gain access to the Ark.
I consider this evidence as sound as any other!
It’s certainly no worse than any of the other theories