What museum did the fearless five infiltrate

The fearless five infiltrated the State Hermitage Museum in St. Petersburg, Russia.  

Explanation:  

State Hermitage Museum or the Winter Palace of St. Petersburg is on record as the world's second largest museum. The museum was started with only a few pieces of art acquired from Johann Ernst by the then Empress of Russia, Catherine the Great. Today the museum hosts over three million pieces of art and cultural artifacts.

beowulf is considered an epic poem because it describes the actions of a great warrior.

beowulf is taken into account an epos. in this poem, the main character may be a hero who travels nice distances to prove his strength at not possible odds against supernatural demons and beasts. in the poem, beowulf was a young warrior and he leaves his country to hrothgar, as hrothgar was in a great trouble.