Keep a word, change a word

[sky.]

Upside advantage

 

[Town Heretic]

upside down

down periscope

 

[sky.]

Periscope Spy

 

[quip]

Spy vs. Spy

 

[Eeset]

Spy vs. Spy

sky spy

 

[Chris_J]

sky spy

mackerel sky

 

[Eeset]

mackerel sky

speckled mackerel

 

[sky.]

speckled mackerel

Holy mackerel

 

[Eeset]

Holy mackerel

very holy

 

[sky.]

very holy

Holy roller

 

[Eeset]

Holy roller

roller derby

 

[sky.]

Demolition derby

 

[Eeset]

Demolition derby

building demolition

 

[Chris_J]

building demolition

roman building

 

[Eeset]

roman building

Roman rituals

 

[kmoney]

roman roads

 

[Silent Hunter]

dusty roads

 

[Silent Hunter]

paved roads

 

[annabenedetti]

paved paradise

 

[Tambora]

paradise lost