15. Holotape Games

Good thing Donkey Kong's obsessed with barrels and not mini nukes.

In Fallout 4 you can collect five holotape games that parody classic video games such as Donkey Kong and Missile Command. Here are their locations:

Red Menace: Vault 111

Zeta Invaders: Nick Valentine’s Office

Pipfall: Fort Hagen Command Center

Atomic Command: Museum of Freedom

Grognak the Barbarian and the Ruby Ruins: Memory Den

14. The Lone Wanderer’s Bike

Fallout 3’s protagonist, the Lone Wanderer, is still wandering the vast Wasteland. Only this time in style. “Lone Wanderer” brand motorcycles and advertisements can be found in various locations.

13. Nirnroot Plants from the Elder Scrolls

If you feel the urge to pick them all, you've played too much Oblivion.

Fans of the Elder Scrolls IV: Oblivion (and maybe Skyrim) will recognize what the “Experimental Plants” aboard the Prydwen really are. You can find the nirnroot in the biolab—just don’t add it to your tea.

12. Walden Pond

"Wow I'm feeling the creative juices already! Oh, wait, that's just trash sludge."

If you’re feeling a might pensive, why not take a trip to the very lakeside where Henry David Thoreau contemplated transcendentalism? Because in the Walden Reserve, you can find Walden Pond, where he lived. Just with more trash than philosophy.

11. Dunwich Borers

"Monday we select the sacrifice. Tuesday we bathe in their blood. Wednesday is poker night."

After clearing out the raiders, enter the Basement of Dunwich Borers. You’ll be assailed by pre-war flashbacks. These creepy paranormal events are a reference to H.P. Lovecraft’s “The Dunwich Horror”.