Hey, You can't sleep here (answer)

Image 1 is an SV, Images 2 thru 4 are BD's

They are most likely all RISable, but editing them is tedious so it's up too you if you want to make it easy on yourself.

nice concept nice stuff! ...though, i do not remember #4 (i visited that location back in... whoa!)

Number 3 was difficult.

Well done everyone

SPOILER: Click to show

{Clue}
They are all RISable

SPOILER: Click to show

{Answer}#1 Planet by Marc Quinn
31 Marina Park
Singapore 019191
1°16'49.42"N103°51'43.78"E

#2 “The Awakening,”
Hamilton Township, New Jersey
Grounds for Sculpture in Central New Jersey, near Trenton
40°13'59.38"N 74°43'13.00"W

#3 The Edge [Nicholas Moreton]
Burghley House, Peterborough
Stamford PE9 3JY
United Kingdom
52°38'28.31"N 0°26'43.40"W

#4 Sleeping Socrates
6900 Lugano, Switzerland
46.0041796,8.9585769