Several original Leviant paintings illustrating this effect hang in the San Francisco Exploratorium, including its very first version (known as the Traffic Illusion).

旧金山探索馆中悬挂着几幅表现这一效应的勒维安特原版画作，包括这幅图的最初版本(即著名的Traffic Illusion“交通错觉”)。

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Also included in the protected area are thousands of rock paintings left behind by the SAN people, who lived in the Drakensberg area for more than 4,000 years.

还包括保护区内，由居住在德拉肯斯堡区域超过4000年的原住民桑人遗留下来的数以千计的石岩壁画。

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The question may be political, but the keenest response is to be found in a museum in Mexico City, the Museo Nacional de San Carlos, at a retrospective of paintings and photographs by the Austrian-American artist Gottfried Helnwein.

FORBES: The True Impact of Violence On Childhood? Why Every American Ought To See The Paintings Of Gottfried Helnwein.

Do not neglect to nip in to nearby San Luigi dei Francesi (Piazza San Luigi dei Francesi), to see its Caravaggio paintings.

BBC: A perfect day in Rome