"Piero della Francesca in America, " the splendid small exhibition organized for the Frick by the guest curator and former Andrew W. Mellon Fellow Nathaniel Silver, bears witness to the effects of that trip.

WSJ: Separated at the Altar | Piero della Francesca in America | Frick Collection | By Karen Wilkin

Wall texts, drawings, photographs and videos, under the supervision of art historian and guest curator Owen Hopkins, trace Hawksmoor's collaborations with Wren and John Vanbrugh, as well as his solo commissions in London and elsewhere in England.

WSJ: St. Mary Woolnoth | Nicholas Hawksmoor | Fortress of God | Masterpiece by Richard B. Woodward

"When you wake up, it feels like you are on the sea, " said Zhang Wei, a Guangzhou-based curator who was an overnight guest on a recent trip.

WSJ: Modern Homes: To Doze, To Design in Hong Kong