Recent business projections for Las Vegas predict challenges ; tourism revenues must increase substantially to sustain what is already built , while actual figures show visitation as steady or declining .	de
Before a skyscraper can be built , a feng shui ( see page 68 ) investigation must take place to ensure that the site and the building will promote health , harmony , and prosperity .	de
Tickets for the shows must be reserved well in advance .	de
Visitors need a visa to enter China , and must disembark at the border ( now called “ boundary ” ) checkpoint , Lo Wai .	de
