The Colosseum

"The Colosseum or Coliseum, originally the Flavian Amphitheatre.., is a giant amphitheatre in the centre of the city of Rome, Italy. Originally capable of seating around 50,000 spectators, it was used for gladiatorial contests and public spectacles. It was built on a site just east of the Roman Forum, with construction starting between 70 and 72 AD under the emperor Vespasian."

http://en.wikipedia.org/wiki/Colosseum

The David

"It is the David alone that almost certainly holds the title of the most recognizable statue in the history of art. It has become regarded as a symbol both of strength and youthful human beauty."

http://en.wikipedia.org/wiki/The_David

Leaning Tower of Pisa

"The Tower of Pisa was a work of art, performed in three stages over a period of about 174 years. Construction of the first floor of the white marble campanile began on August 9, 1173, a period of military success and prosperity. This first floor is surrounded by pillars with classical capitals, leaning against blind arches."

http://en.wikipedia.org/wiki/Leaning_tower_of_Pisa

Pantheon

"The Pantheon..is a building in Rome which was originally built as a temple to the seven deities of the seven planets in the state religion of Ancient Rome. It is the best preserved of all Roman buildings, and perhaps the best preserved building of its age in the world. It has been in continuous use throughout its history. Although the identity of the Pantheon's primary architect remains uncertain, it is largely assigned to Apollodorus of Damascus. Since the 7th century, the Pantheon has been used as a Christian church."

http://en.wikipedia.org/wiki/Pantheon%2C_Rome

Pompeii

"Pompeii is a ruined Roman city near modern Naples in the Italian region of Campania, in the territory of the comune of Pompei. It, along with Herculaneum, was destroyed, and completely buried, during a catastrophic eruption of the volcano Mount Vesuvius spanning 2 days on 24 August 79 AD."

http://en.wikipedia.org/wiki/Pompeii

Trevi Fountain

"A traditional legend holds that if visitors throw a coin into the fountain, they are ensured a return to Rome. Among those who are unaware that the "three coins" of Three Coins in the Fountain were thrown by three different individuals, a reported current interpretation is that two coins will ensure a marriage will occur soon, while three coins leads to a divorce. A reported current version of this legend is that it is lucky to throw three coins with one's right hand over one's left shoulder into the Trevi Fountain."

http://en.wikipedia.org/wiki/Trevi_Fountain

Piazza San Marco

"A remark often attributed to Napoleon (but perhaps more correctly to Alfred de Musset) calls the Piazza San Marco "the drawing room of Europe". It is the only great urban space in a European city where human voices prevail over the sounds of motorized traffic, which is confined to Venice's waterways. It is the only urban space called a piazza in Venice; the others, regardless of size, are called campi."

http://en.wikipedia.org/wiki/Piazza_San_Marco