The conservator’s eye: Anselm Kiefer, Bohemia Lies by the Sea, 1996, oil, emulsion, shellac, charcoal, and powdered paint on burlap, 75 1/4 in. × 18 ft. 5 inches / 191.1 × 561.3 cm (The Metropolitan Museum of Art). Speakers: Corey D'Augustine and Steven Zucker.

Video by San Francisco Museum of Modern Art. Surrounded by his paintings in SFMOMA’s galleries, German artist Anselm Kiefer describes the challenges and significance of exploring the past in his work. He highlights the subjective, emotional nature of both history and art. Created by Smarthistory.

Video by SFMOMA. German painter and sculptor Anselm Kiefer discusses the meanings behind some of his favorite materials, including straw, cow manure, and lead. He describes how he strives for fluidity and malleability in his work, though conservation can be a challenge. Created by Smarthistory.

Apollonius, Boxer at Rest, c. 100 B.C.E., bronze, Hellenistic Period (Palazzo Massimo, Museo Nazionale Romano, Rome). Speakers: Dr. Steven Zucker and Dr. Beth Harris. Created by Beth Harris and Steven Zucker.

Apulu (Apollo of Veii), from the roof of the Portonaccio temple, Italy, c. 510-500 B.C.E., painted terracotta, 5 feet, 11 inches high (Museo Nazionale di Villa Giulia, Rome). Speakers: Dr Steven Zucker and Dr. Beth Harris.

Ara Pacis Augustae (Altar of Augustan Peace), 13-9 B.C.E.Speakers: Dr. Beth Harris & Dr. Steven Zucker. Created by Beth Harris and Steven Zucker.

Arch of Constantine, 312-315 C.E., approximately 20m high, 25m wide, and 7m deep, central opening approximately 12m high, Rome. Speakers: Dr. Steven Zucker and Dr. Beth Harris. Video produced by Dr. Naraelle Hohensee, Dr. Beth Harris, and Dr. Steven Zucker.

Triumphal Arch of Septimius Severus, 203 C.E., marble above a travertine base, roughly 23 x 25 m, Roman Forum speakers: Dr. Darius Arya, executive director of the American Institute for Roman Culture and Dr. Beth Harris This video was made in collaboration with the American Institute for Roman Culture.

Take a guided virtual tour of the Scrovegni (Arena) Chapel, in Padova, Italy — thanks to Matthew Brennan. 360-degree video allows you to look around the interior freely, and provides a new perspective on this masterpiece of Italian Renaissance art. See the frescoes up-close and at eye-level, as if you were floating right in front of them, thanks to a new approach developed by Mirror Stage Studio. Narration by SmartHistory: www.smarthistory.org Video production by Mirror Stage: www.mirrorstage.io This video makes use of imagery available in the public domain, as well as provided by Smarthistory. Created by Smarthistory.

What is art conservation? Who does it and how does it work? Take a behind-the-scenes look inside the Art Conservation department at the Isabella Stewart Gardner Museum and meet the team of trained conservators who specialize in the treatment of objects, paintings, and textiles. Want to learn more about art conservation at the Gardner? Visit http://www.gardnermuseum.org/collection/conservation Filmmaking by SheridanWorks.

Created by The Museum of Modern Art. Learn why Willem de Kooning added raw egg to his paint.

Created by The Museum of Modern Art. Learn the properties of enamel paint and why artists use it.