GBU-57A/B Massive Ordnance Penetrator (MOP)
Doctrine calls for the use of the MOP once enemy air defenses have been neutralized and air supremacy has been established. You can hide, but you’ll still be vaporized. (See captioned graphic)
The B-2 Spirit carries two of these. The doctrine calls for dropping them on the SAME SPOT, just to be sure. One, then the other.
Some people also call the sweet spot, the ‘fun zone’.