Chichen Itza

• more like: Mayapan, El Castillo, Chichen Itza, Hacienda Chichén
• vector search: Palenque, Uxmal, Calakmul
• see also: Asteroid 100456 Chichen Itza, List of archeoastronomical sites sorted by country, List of Mesoamerican pyramids
• most linked: Mesoamerican chronology, Maya architecture, Edward Herbert Thompson

Christ the Redeemer

• more like: Corcovado, Heitor da Silva Costa, Gheorghe Leonida
• vector search: Basilica of Nuestra Señora de la Merced, Archbishop's Palace of Lima, São Paulo Cathedral
• see also: List of statues of Jesus, List of tallest statues
• most linked: Redeemer (Christianity)

Colosseum

• more like: Colossus of Nero, Inaugural games of the Colosseum, Roman amphitheatre
• vector search: Pantheon, Baths of Diocletian, Temple of Hadrian
• see also: List of Roman amphitheatres, List of tallest structures built before the 20th century, List of tourist attractions in Rome
• most linked: Italian language, Vespasian, Titus

Great Wall of China

• more like: Hushan Great Wall, History of the Great Wall of China, Ming Great Wall
• vector search: Mausoleum of the First Qin Emperor, Terracotta Army, Xanadu
• see also: Cheolli Jangseong, Chinese city wall, Defense of the Great Wall
• most linked: Ancient Chinese states, Ming dynasty, Chinese city wall

Machu Picchu

• more like: Patallacta, Peru–Yale University dispute, Agustín Lizárraga
• vector search: Chavin de Huantar, Caral, Chan Chan
• see also: Iperú, Lares trek, List of archaeological sites in Peru
• most linked: Inca Empire, Sacred Valley, Cusco

Petra

• more like: Al-Khazneh, Nabataean architecture, Little Petra
• vector search: Umm ar-Rasas, Jerash, Little Petra
• see also: Hegra (Mada'in Salih), Bedul, Incense Route – Desert Cities in the Negev
• most linked: Sandstone, New 7 Wonders of the World, World Heritage Site

Taj Mahal

• more like: Tomb of I'timād-ud-Daulah, Origins and architecture of the Taj Mahal, Black Taj Mahal
• vector search: Qutb complex, Humayun's Tomb, Ancient Indian architecture
• see also: Architecture of India, Indo-Islamic architecture, List of tallest domes
• most linked: Marble, Mausoleum, Yamuna

@JScherer-WMF let me know if the list above looks good and if you can make the new google form with that!
Just an fyi, some API results dont have all 3 results, so you might notice some only include 1 or 2 entries

All done, will continue with enabling the survey in T379241: Set up quicksurveys for non-UI experiment pt 2