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Spot the Portuguese tricolor
Find a Portuguese flag (vertical green-red with the coat of arms) flying on a building, balcony or boat. Photograph the colours.
Spot the Prado Museum facade
Walk down Paseo del Prado and find the long neoclassical facade of the Museo del Prado. Photograph the columns or the Velázquez statue at the front entrance.
Spot the Rapenburg canal reflection
Walk along the Rapenburg and find a still stretch with the canal houses reflected. Photograph the mirror image.
Spot the Rathausmarkt facade
Walk to Rathausmarkt and find the Hamburg town hall (Rathaus) facade with its 112-metre tower. Photograph the building.
Spot the Real Alcázar facade
Find the Real Alcázar entrance gate (the Lion Gate / Puerta del León). Photograph the brick-and-tile facade.
Spot the Reeperbahn neon
Walk down the Reeperbahn in St Pauli (daytime is fine, but it really comes alive at night) and find a neon sign or pub front. Photograph the sign.
Spot the Reichstag dome
Find the glass Reichstag dome by Norman Foster on top of the parliament building. Photograph it from the lawn or one of the surrounding bridges.
Spot the Remarkables ridge
Find a view of the Remarkables mountain range. Photograph the jagged ridge.
Spot the Rialto Bridge
Find the Rialto Bridge over the Grand Canal. Photograph the white marble arch with the shops on it.
Spot the Ribeira pastel facades
Walk along the Ribeira waterfront and find the colourful pastel houses stacked up the hillside. Photograph the cascade.
Spot the Ridderzaal (Knight's Hall)
Inside the Binnenhof find the Ridderzaal, the gothic Knight's Hall with the rose window. Photograph the facade.
Spot the Riesenrad Ferris wheel
Find the Wiener Riesenrad in the Prater, the 65-metre Ferris wheel with the wooden red gondolas. Photograph the wheel.
Spot the Rietveld Schröder House
Walk east to the Rietveld Schröder House on Prins Hendriklaan. Photograph the De Stijl primary-colour facade with red, blue, yellow and white planes.
Spot the Robert Burns statue
In the Octagon find the seated Robert Burns statue. Photograph the poet.
Spot the Round Tower
Find the Rundetårn (Round Tower) on Købmagergade, a 17th-century observatory tower with a spiral ramp inside. Photograph the brick cylinder.
Spot the Royal Castle (Zamek Królewski)
Find the Royal Castle on Castle Square (Plac Zamkowy) with its terracotta-and-cream facade. Photograph the square in front.
Spot the Royal Mile cobblestones
Walk the Royal Mile and photograph a stretch of the cobblestone street with a Tolbooth, statue or close in the frame.
Spot the Royal Palace
Walk to the Palacio Real at the western end of Calle Mayor. Photograph the long limestone facade with the team or the Plaza de Oriente in front.
Spot the Royal Palace (Kungliga Slottet)
Find the Royal Palace on Gamla Stan, the long ochre Baroque facade. Photograph the courtyard or a guard.
Spot the Royal Palace (Slottet)
Walk to the top of Karl Johans gate and find the Royal Palace (Slottet), the yellow-and-white palace at the end. Photograph it across the open square.
Spot the Royal Palace on Dam Square
Walk to Dam Square and find the Royal Palace (Koninklijk Paleis). Photograph the limestone facade with the team or Dam Square in front.
Spot the Ryman Auditorium facade
Find the Ryman Auditorium (the Mother Church of Country Music) on Fifth Avenue North. Photograph the brick facade.
Spot the Sablon antique stalls
Walk to the Place du Grand Sablon and find the antique stalls (weekends) or the chocolate-shop windows. Photograph a stall or a shop facade.
Spot the Sacré-Cœur silhouette
Spot the white domes of Sacré-Cœur, either from Montmartre up close or as a silhouette on the northern horizon. Photograph it.