In the 19th and early 20th centuries, some writers emulated the classical list by creating their own lists with names such as "Wonders of the Middle Ages", "Seven Wonders of the Middle Ages", "Seven Wonders of the Medieval Mind", and "Architectural Wonders of the Middle Ages". It is unlikely that any of these lists actually originated in the Middle Ages since the concept of a "Middle Age" did not become popular until at least the 16th century and the word "medieval" was not invented until the Enlightenment era. Brewer's Dictionary of Phrase and Fable refers to them as "later list[s]", suggesting the lists were created after the Middle Ages.

Many of the structures on these lists were built much earlier than the Middle Ages but were well known throughout the world. Typically representative of such lists are:
• Catacombs of Kom El Shoqafa, a 2nd-century funerary complex in Alexandria, Egypt.
• Colosseum, a 1st-century amphitheatre in the centre of the city of Rome, Italy.
• Great Wall of China, a series of defensive fortifications built across the historical northern borders of China, with some segments dating to as early as the 7th century BC.
• Hagia Sophia, a 6th-century cathedral and mosque in Istanbul, Turkey.
• Leaning Tower of Pisa, a 12th-century bell tower in Pisa, Italy.
• Porcelain Tower of Nanjing, a 15th-century pagoda on the south bank of the external Qinhuai River in Nanjing, China.
• Stonehenge, a Neolithic henge monument in Wiltshire, England dated to the 3rd millennium BC.
Other structures sometimes included on such lists include:
• Cairo Citadel, a 13th-century Islamic fortification in Cairo, Egypt.
• Cluny Abbey, a 10th-century Benedictine monastery in Cluny, Saône-et-Loire, France.
• Ely Cathedral, a (currently Anglican) cathedral originally built in the 11th century in Ely, Cambridgeshire, England.

Following in the tradition of the classical list, modern people and organisations have made their own lists of wonderful things, both ancient and modern, natural and artificial. Some of the most notable lists are presented below.
In 1994, the American Society of Civil Engineers compiled a list of Seven Wonders of the Modern World, paying tribute to the "greatest civil engineering achievements of the 20th century".
In November 2006, the American national newspaper USA Today and the American television show Good Morning America revealed a list of the "New Seven Wonders", both natural and human-made, as chosen by six judges. The Grand Canyon was added as an eighth wonder on November 24, 2006, in response to viewer feedback.
Similar to the other lists of wonders, there is no consensus on a list of seven natural wonders of the world, and there has been debate over how large such a list should be. One of many existing versions of this list was compiled by CNN in 1997:
• Aurora, in the Earth's high-latitude regions (around the Arctic and Antarctic)
• Grand Canyon, in Arizona, United States
• Great Barrier Reef, off the coast of Queensland, Australia
• Harbor of Rio de Janeiro, Brazil
• Mount Everest, on the border of Nepal and China
• Parícutin volcano, located in the state of Michoacán, Mexico
• Victoria Falls, on the border of Zambia and Zimbabwe
In 2001, an initiative was started by the Swiss corporation New7Wonders Foundation to choose the New 7 Wonders of the World from a selection of 200 existing monuments through online votes. The Great Pyramid of Giza, the only remaining wonder of the traditional Seven Wonders of the Ancient World, was not one of the winners announced in 2007 but was added as an honorary candidate.
A similar contemporary effort to create a list of seven natural (as opposed to human-made) wonders chosen through a global poll, called the New 7 Wonders of Nature, was organized from 2007 to 2011 by the same group as the New 7 Wonders of the World campaign.
• Iguazu Falls, on the border of the Argentine province of Misiones and the Brazilian state of Paraná
• Hạ Long Bay, in Quảng Ninh province, Vietnam
• Jeju Island, in the Jeju Province of South Korea
• Puerto Princesa Underground River, in Palawan, Philippines
• Table Mountain, overlooking the city of Cape Town, South Africa

Read more on Wikipedia

• Eighth Wonder of the World
• National Seven Wonders
• 12 Treasures of Spain
• Seven Wonders of Fore (Fore Abbey, Ireland)
• World Heritage List – a list of over 1,200 sites deemed by UNESCO to be of "outstanding universal value"