Country
4 landmarks in the Castle Map atlas — every one mapped with a photo and its story, all 4 with sourced founding dates, ranked by Wikipedia coverage and real readership.
The most famous castle in Guernsey is Castle Cornet, ranked #2,236 of 9,079 in the world — followed by Fort Clonque and Fort Tourgis.
The Castle Map atlas charts 1 castle, 2 fortresses and 1 ruin in Guernsey. They span more than 6 centuries — from Castle Cornet (founded 1206) to Fort Clonque (1855). Every one is plotted with its photo, founding date and story on the interactive castle map of Guernsey.
See them on the map →Castle · 13th century · #1 in Guernsey
Castle Cornet is a large island castle in Guernsey, and former tidal island, also known as Cornet Rock or Castle Rock.
Fortress · 19th century · #2 in Guernsey
Fort Clonque is a 19th-century coastal fortress in Alderney, in the Bailiwick of Guernsey in the Channel Islands built on a rocky outcrop of land…
Ruin · 19th century · #3 in Guernsey
Fort Tourgis is an extensive fortification in Alderney to the north west of St Anne forming part of the Fortifications of Alderney inside the…
Fortress · 19th century · #4 in Guernsey
Fort Grey, colloquially known as the "cup and saucer", is a Martello tower located on a tidal rock in Rocquaine Bay in Saint Peter, Guernsey on the…
The Castle Map atlas maps 4 landmarks (1 castle · 2 fortresses · 1 ruin) in Guernsey — a curated selection of well-documented landmarks from Wikidata, not a count of every fortification ever built.
Castle Cornet, ranked #2,236 of 9,079 worldwide in the atlas's fame ranking, founded in the 13th century.
See also: the most famous castle in every country · the oldest in every country · medieval castles · castle statistics.
