12 hidden places nearby
No guidebook lists them. Find them before everyone else.
Doorwerth Castle
Duurstede Castle
Castle Ammersoyen
Allard Pierson Museum
Basilica of St. Nicholas
Westerkerk
Zeiss planetarium in Bochum
Hague
Radboud Castle
Zimmer tower: world’s most complicated clock
Astronomical Clock in Munster Cathedral,
