The puzzles people open most often.
Brandenburg Gate at Night, Berlin
Palermo Cathedral, Sicily
The Acropolis at Night, Athens
Monte-Carlo Casino, Monaco
Saint-Tropez Old Town
Nice and the Baie des Anges
Notre-Dame de la Garde, Marseille
Milan Cathedral
Park Güell, Barcelona
Dom Luís I Bridge, Porto
Belém Tower, Lisbon
The Colosseum at Dusk, Rome
Tower Bridge at Dawn, London
Milford Sound Fiords
Sydney Opera House
Patagonia Mountain Range
Machu Picchu Ruins
Chichen Itza Pyramid
Banff National Park Lake
Yellowstone Geyser Basin
Grand Canyon Overlook
Victoria Falls Spray
Marrakech Souk Lanterns
Sahara Desert from Space
Jigsaw