US and Canada
New York CityHarbor forts, nine lighthouses and 41 beachesSan FranciscoGolden Gate batteries, lighthouses and Coit TowerSeattle75 viewpoints, 43 beaches and two lighthousesBostonHarbor forts, lighthouses and 67 beachesLos AngelesDowntown views, San Gabriel waterfalls and Bronson CavesWashington, DCMonuments, forts and Great Falls on the PotomacChicago36 lakefront beaches and 17 lighthousesBaltimoreFort McHenry, Patapsco lighthouses and 38 monumentsPortland, OregonButtes, Willamette Falls and the Witch's CastleDenverThe Table Mountains, Keyhole Rock and 28 monumentsVancouver30 beaches, Stanley Park lighthouses and North Shore fallsMontrealMont-Royal lookouts, Château Ramezay and three windmills
UK and Ireland
LondonThe Tower, Kew Palace, the Mithraeum and deep sheltersEdinburghCastles, Arthur's Seat and 19 beaches on the ForthGlasgowCrookston Castle, the Antonine Wall and 31 waterfallsDublinCastles, nine lighthouses and Dublin Mountain dolmensBristol38 caves, Stanton Drew and Chepstow CastleManchesterRoman forts, Pennine moors and the Druid Stone CircleBirminghamWeoley Castle, Perrott's Folly and the Clent HillsLeedsPontefract Castle, Harewood and the Twelve ApostlesPlymouthSmeaton's Tower, harbor forts and Dartmoor stone rowsCardiffCardiff Castle, Castell Coch and Bristol Channel lightsNewcastleHadrian's Wall forts, castles and 11 lighthousesSheffieldPeak District tors, stone circles and Robin Hood's CaveCorkBlarney, Blackrock and forts around the harbor
Germany, Austria and Switzerland
BerlinCharlottenburg, the Spandau citadel and 28 lake beachesHamburgElbe lighthouses, windmills and seven megalithic tombsMunichNymphenburg, the Karlstor and 30 archaeological sitesCologneCity gates, Schloss Augustusburg and a ring of fortsFrankfurtTaunus castles, the Feldberg tower and 27 bunkersStuttgart96 viewpoints, Hohenasperg and the Killesberg towerDüsseldorfSchloss Dyck, Burg Linn and 14 Lower Rhine windmillsDortmundCountry houses, coal-mine ruins and Ruhr lookout towersLeipzig27 windmills, the Barockschloss Delitzsch and 14 lake beachesDresdenSchloss Wackerbarth, 298 hills and 48 ruinsNurembergThe Kaiserburg, 61 castles and 33 watermillsHanover19 windmills, the Pferdeturm and the Annaturm on the DeisterBremenWindmills, Metalhenge and the Steinkimmen tombsFreiburgFeldberg, Schauinsland, 28 waterfalls and the MartinstorAachen92 castles and 80 watermills across three countriesErfurtTwo citadels, Burg Gleichen and 26 watermillsRegensburgCity gates from 1284, the Walhalla and 20 cavesKasselWilhelmshöhe, the Löwenburg and eight megalithic tombsViennaSchönbrunn, 20 lookout towers and 110 cavesGrazThe Schöckl, the Lurgrotte and 56 castlesSalzburgHohensalzburg, the Gaisberg and an ice cave at 1570 mInnsbruck314 summits, 11 waterfalls and the Porta ClaudiaZurichUetliberg tower, lakeside castles and 52 waterfallsBaselCastles in three countries, Augusta Raurica and 69 bunkersBernThe Zytglogge, 57 castles and the Chutzenturm
