Inscription from the tomb of Lucius Cornelius Scipio Asiaticus
Marble bust of Caligula at the Houston Museum of Natural Science
Perseus holding the head of Medusa, fresco, (?)50-79 CE; Villa San Marco, Stabiae, Italy
The General Principles of Greek Art
Marble torso at the Palazzo dei Conservatori, Rome
via Byzigenous Buddhapalian
Barbarian prince on the Ara Pacis Augustae, 13-9 BCE, marble
Recommended reading:
Pledges of Empire: The Ara Pacis and the Donations of Rome
Primary sources, such as Suetonius in his biography of Augustus in Lives of the Twelve Caesars and Augustus’ Res Gestae (32), refer to the act of the emperor taking in the children of foreign kings as pledges of the empire. 
Mosaic from the Baths of Neptune at Ostia, mid-second century CE
Ludovisi Gaul, Roman copy of Greek original of c. 230 BCE, marble; 83 in. (h); Palazzo Altemps, Rome
Aphrodite from Kyrene, c. 310 BCE
Detail of cuirass of Augustus of Prima Porta, early 1st century, Carrara marble, 6 ft. 8 in. H. (complete), Musei Vaticani, Vatican City
Interpretation of the Breastplate
Gandharan sculpture of Bodhisattva from Kushan Period, late 2nd century, gray schist, 52-1/8 in. (height).
The Cleveland Museum of Art
Sculpture of Antinous, marble, first half of 2nd century CE
Roman marble statue of the Diadoumenos, copy of a work attributed to Polykleitos, 1st-2nd century CE, 67-1/4 in. (height)
Metropolitan Museum of Art
Roman marble torso of a youth, c. 118-161 CE, 33 in. (height)
Metropolitan Museum of Art
Greek Silver Helmet, 4th century BCE,  9-1/2 x 7-1/8 in. (height x width).
Detroit Institute of Arts
Opaque  by  andbamnan