A tourist jumps inside an upside-down house at Fengjing Ancient Town, Jinshan District, south of Shanghai, May 1, 2014. The upside-down house was built as a tourist attraction using everyday household items and furniture. (Photo by Aly Song/Reuters)

Papier-mache pandas, created by French artist Paulo Grangeon, are covered with conical hats as they are displayed under the rain at the financial Central district in Hong Kong June 21, 2014. The installation arrived in the city on Monday, launching the month-long “1600 Pandas World Tour in Hong Kong: Creativity meets Conservation” organized by a local art organiser, according to the official press release. (Photo by Tyrone Siu/Reuters)

A supporter welcomes US army convoy as it enters Czech Republic in Harrachov, Sunday, March 29, 2015. The “Dragoon Ride” convoy started last week from Estonia and passed through Latvia, Lithuania and Poland before entering the Czech Republic on a return journey to a German base. (Photo by Petr David Josek/AP Photo)

Anne Owen and Abigail Owen-Pontez strap into “Elee”, a car made of cutlery from American Airlines during the Everyones Art Car Parade May 14, 2005 in Houston, Texas. The silverware was purchased by Houston artist Mark Bradford when the airline had to convert to plasticware after the September 11, 2001 attacks on the World Trade Center and Pentagon. The parade includes around 280 cars and is part of Art Car Weekend along with a street festival, parade, carnival, ball and other events. (Photo by Dave Einsel/Getty Images)

The Upside Down Room, with furniture on the ceiling and real beds and chairs that open out of the floor, is one of many creative and even bizarre rooms shown photographed February 14, 2002 at the Propeller Island City Lodge in Berlin, Germany. Owner, artist and musician Lars Stroschen designed the rooms of the hotel, which has 28 rooms and has been open since June, 2001. (Photo by Sean Gallup/Getty Images)

Neapolitan Christmas Nativity figurines on display at “Maestri Ferrigno”, which opened in 1836, at Via San Gregorio Armeno on December 14, 2011 in Naples, Italy. Via San Gregorio Armeno, Christmas Alley as it is known, is considered by many to be the world capital of the Nativity and home to the artisans and merchants who specialize in the art and the craft of the Neapolitan Presepe. Over the Christmas period, more than half a million tourists come to see the shops. (Photo by Franco Origlia/Getty Images)

Visitors play in front of hot air balloons during the 2016 International Hot Air Balloon Festival in Taitung, southeast of Taiwan, 01 July 2016. Thirty-one hot-air balloon teams from 14 countries join the six days of competition during the festival, which will run from 01 July to 07 August 2016. (Photo by Ritchie B. Tongo/EPA)

Aviator Frantisek Hadrava moves Vampira, an ultralight plane based on the U.S.-design of light planes called Mini-Max, out of a garage in the village of Zdikov, Czech Republic, August 23, 2016. Frantisek thought driving to work for 14 minutes was too much, so he built an plane to cut the commute by half. (Photo by David W. Cerny/Reuters)