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ChangeCheckpoint: Rainbow Row
Navigate to Rainbow Row on East Bay Street, between Tradd and Elliott Streets, and check in across the road from the pastel houses.
Checkpoint: Reading Terminal Market
Navigate to Reading Terminal Market on 12th and Arch and check in at the main entrance.
Checkpoint: Real Alcázar
Navigate to the Real Alcázar of Seville and check in.
Checkpoint: Reichstag
Navigate to the Reichstag building and check in at the steps.
Checkpoint: Retiro Park
Time for greenery. Navigate to Retiro Park and check in.
Checkpoint: Rhode Island State House
Walk north to the Rhode Island State House on Smith Street and check in on the front lawn.
Checkpoint: Rialto Bridge
Navigate to the Rialto Bridge over the Grand Canal and check in.
Checkpoint: Ribeira
Navigate to the Ribeira waterfront along the Douro river and check in.
Checkpoint: River Arts District
Walk or rideshare west to the River Arts District (RAD) along the French Broad River, and check in by any open-studio building.
Checkpoint: River Street
Walk down to River Street along the Savannah River and check in by the waving girl statue or the Hyatt steps.
Checkpoint: River Walk
Walk one block south and down to the River Walk. Check in near the main bend by the Aztec Theater or Hyatt steps.
Checkpoint: Rocky steps
Navigate to the steps of the Philadelphia Museum of Art (the Rocky steps) and check in at the bottom.
Checkpoint: Roman Forum
Navigate to the Roman Forum and check in.
Checkpoint: Ross's Landing
Navigate to Ross's Landing on the downtown riverfront, beside the Tennessee Aquarium, and check in.
Checkpoint: Royal Castle
Navigate to the Royal Castle (Zamek Królewski) and check in.
Checkpoint: Royal Mile
Navigate to the Royal Mile (the High Street running between the castle and Holyrood Palace). Check in along it.
Checkpoint: Royal Palace
Navigate to the Royal Palace (Slottet) at the top of Karl Johans gate and check in.
Checkpoint: Rozenhoedkaai
Navigate to the Rozenhoedkaai (Rosary Quay), the most photographed corner in Bruges, and check in at the canal-side fence.
Checkpoint: Ryman Auditorium
Navigate to the Ryman Auditorium, the Mother Church of Country Music. Check in once you are at the entrance.
Checkpoint: Sacré-Cœur
Climb (or take the funicular) up to Sacré-Cœur in Montmartre and check in once you can see the white domes.
Checkpoint: Sagrada Familia
The world's most famous unfinished cathedral. Navigate to Sagrada Familia and check in once you can see Gaudí's towers above you.
Checkpoint: San Miguel Mission
Walk south across the Santa Fe River to San Miguel Mission on Old Santa Fe Trail and check in at the entrance.
Checkpoint: Santa Fe Plaza
Navigate to the Santa Fe Plaza in the historic centre and check in by the obelisk in the middle.
Checkpoint: Santa Maria delle Grazie
Navigate to the church of Santa Maria delle Grazie (where the Last Supper lives) and check in at the front.