This is the gateway to my collections:

Rijksmonumenten:

Rijksmonumenten are dutch monuments selected by the Rijksdienst voor Cultureel Erfgoed for preservation. My collection shows the monuments I have photographed.

Railwaystations (NL)

This is a collection of dutch railway stations (NL)

Signalboxes / seinhuizen / stellwerke

This is a collection of signal boxes

Architects (NL)

This is a collection of mainly dutch architects and is mostly a cross-reference of the monuments and stations collections.