The classics. Pick one.

Vineyard above the valley.

Clayton, USA · easy

Sing along.

Stockholm, Sweden · easy

Seven levels solo, then the sky is paperwork-free.

Empuriabrava, Spain · expert

Deep plus wreck, Blue Hole from above only. Bedouin dinner after.

Dahab, Egypt · hard

Cradle of temples.

Badami, India · easy

Temple complex.

Delhi, India · easy

Mosaic halls.

Córdoba, Spain · easy

Moorish palace.

Seville, Spain · easy

Folk culture.

Strasbourg, France · easy

Baltic gold.

Gdansk, Poland · easy

Renaissance castle.

Innsbruck, Austria · easy

Socrates' stomping ground with a paperback Republic.

Athens, Greece · easy

Sacred city.

Litochoro, Greece · easy

Older than Hampi.

Hampi, India · easy

Book months ahead.

Amsterdam, Netherlands · easy

Roman halls.

Antalya, Turkey · easy

Heavy history.

Johannesburg, South Africa · easy

Moon training.

Husavik, Iceland · easy

Downtown aquarium.

Toronto, Canada · easy

Victorian tanks.

Brighton, United Kingdom · easy

Oceanographic.

San Sebastián, Spain · easy

Alphabet, greetings, enough to order mansaf like family.

Amman, Jordan · moderate

Al burro vs al ragù.

Catania, Italy · easy

Anatomy theater.

Bologna, Italy · easy

Women's co-op.

Essaouira, Morocco · easy

Glass corridor.

Rovaniemi, Finland · easy

Historic weapons.

Graz, Austria · easy

Curved iron.

Brussels, Belgium · easy

Wonder remnant.

Selçuk, Turkey · easy

Ten constellations by sight, one meteor shower planned.

Anywhere · easy

Milky Way over the salt with a local guide.

Uyuni, Bolivia · easy

Historic house.

Thessaloniki, Greece · easy

Market hall.

Montreal, Canada · easy

Essential memorial.

Krakow, Poland · easy

Beacon, shovel, probe drills. Mandatory before touring.

Anywhere · moderate

Doctor consult.

Varkala, India · easy

Cultural center.

Bilbao, Spain · easy

Car world.

Munich, Germany · easy

Dips, isolations, one social per week minimum.

Anywhere · moderate

Name it, feed it, neglect it, revive it. Crumb shots mandatory.

Anywhere · easy

Speleology.

Plitvice, Croatia · easy

Surf history.

Zarautz, Spain · easy

Bird watching.

Waisai, Indonesia · easy

Tudor springs.

Rotorua, New Zealand · easy

UNESCO facades.

Tel Aviv, Israel · easy

Quebrantahuesos.

Torla, Spain · easy

Fine arts.

Lille, France · easy

Sage tea.

Wadi Rum, Jordan · easy

The Kiss.

Vienna, Austria · easy

Waterbury tour.

Stowe, USA · easy

Wave history.

Nazaré, Portugal · easy

Punctures, gears, brakes. Stand pays for itself.

Anywhere · easy

Parliament seat.

The Hague, Netherlands · easy

Zoo-immersion.

Valencia, Spain · easy

One hundred species in a year. Binoculars change sidewalks.

Anywhere · moderate

Flamingo shores.

Serengeti, Tanzania · easy

Arts and Crafts.

Bowness, England · easy

Oceanium.

Rotterdam, Netherlands · easy

Dome interior.

Amman, Jordan · easy

Stamps and colonial history.

Port Louis, Mauritius · easy