Kastelholm Castle: a stronghold that brings medieval life closer to our time
Durrow Abbey: the monastery that witnessed the supernova of July 4th, 1054
Observation Post Alpha: built in case of Cold War escalation
Machine de Marly: an attempt to bring water to the Palace of Versailles and the Chateau of Marly
The Palace of the Grand Dukes of Lithuania: abandoned for 150 years, before being demolished and today erected anew
Beckford’s Folly: a cathedral for one
