The classics. Pick one.

Salnitre caves.

Monistrol, Spain · easy

Adopt-a-troop visit at the conservation center.

Diani Beach, Kenya · easy

Casa di Colombo.

Genoa, Italy · easy

Worker parade.

Olomouc, Czechia · easy

Science in the glass crystal.

Lyon, France · easy

Court and fort.

Johannesburg, South Africa · easy

Planetarium.

Warsaw, Poland · easy

Canova casts.

Cork, Ireland · easy

Ongoing work.

Keystone, USA · easy

With a guide.

Varanasi, India · easy

Croc farm.

St Lucia, South Africa · easy

Twenty-seven layers, butter everywhere, bakery smell for days.

Anywhere · hard

Volcanic ridges.

Skye, Scotland · easy

1746 moor.

Inverness, Scotland · easy

Inca astronomy.

Cusco, Peru · easy

Modern art.

Prague, Czechia · easy

Stargazing in the reserve.

Jasper, Canada · easy

Central Idaho Dark Sky Reserve nights.

Stanley, USA · easy

Develop, enlarge, watch images surface in trays. Magic intact.

Anywhere · moderate

Wooden Stakes Cave.

Ha Long, Vietnam · easy

Argue both sides well. Lose gracefully, win occasionally.

Anywhere · moderate

Coin tour.

Denver, USA · easy

Underground city.

Cappadocia, Turkey · easy

Sufi stories.

Blagaj, Bosnia · easy

Science museum.

Munich, Germany · easy

Underground falls.

Pokhara, Nepal · easy

Reality tour.

Mumbai, India · easy

Stalactites.

Railay, Thailand · easy

Dinosaur museum.

Oliana, Spain · easy

Fossil museum.

Shelf Road, USA · easy

One paradiddle at a time. Earplugs for housemates included.

Anywhere · moderate

Pan-African roots.

Accra, Ghana · easy

Museo Egizio.

Turin, Italy · easy

Mendocino style.

Mendoza, Argentina · easy

Marble goddess.

Selçuk, Turkey · easy

Grind, dose, yield. Café-level shots at home within a month.

Anywhere · moderate

Carricante on the slopes.

Catania, Italy · easy

Portuguese guitarra, saudade required. Alfama tavern recital.

Lisbon, Portugal · hard

Mammoth bones.

Maple Canyon, USA · easy

Vidigal with a local guide.

Rio de Janeiro, Brazil · easy

Ferry, 4x4 and guided coastal walk.

Garden Route, South Africa · easy

1579 mosque.

Banja Luka, Bosnia · easy

Kimchi, kraut, hot sauce. Burp jars daily, trust the funk.

Anywhere · easy

Proteas and sunbirds in the reserve.

Hermanus, South Africa · easy

Basalt columns.

Oban, Scotland · easy

Native history.

Oklahoma City, USA · easy

One weekend, dummy practice, genuinely useful forever.

Anywhere · easy

Trout below the dam.

Summersville, USA · easy

Skrei cod and sea stories.

Reine, Norway · easy

Pollock and mackerel.

Lysebotn, Norway · easy

Rasgueado until your nails file themselves. Peña nights included.

Seville, Spain · hard

Seasonal birds.

Merzouga, Morocco · easy

Dry flies for rainbows.

Futaleufú, Chile · easy

Nonni house.

Akureyri, Iceland · easy

Tallest dam east of the Rockies.

Robbinsville, USA · easy

Wild edibles.

Asheville, USA · easy

Old crafts.

Foix, France · easy

Brazilian partner dance, festival at the end.

Anywhere · easy

Civil War start.

Charleston, USA · easy

Gibraltar on Danube.

Novi Sad, Serbia · easy