Legend

To describe the sites, I’ve used the following criteria.

Access

= Open access
= Security
= Climbing required

Decay

= Pristine
= Some dust/mould
= Some rot, paint peeling
= Severe damage by the elements, structurally unsound

Tourism

= No evidence of other explorers
 = Some evidence of other explorers
 = Possibility of meeting other explorers
= Heavy traffic/permission visit

Vandalism

= No vandalism
= Some graffiti
 = Graffiti and vandalism
= Heavily trashed

Aesthetics

= Trashed
= Empty interiors, only architecture
 = Internals intact, character
= Stunning