Text from article: Some days no one turns up for a tour at all. Most days there are only a few, including those curious about all the reports of ruin. When people do come, what do they see? In the Opera House, which no longer has an opera, there is an empty orchestra pit scattered with trash. On the grand terrace overlooking the Potomac River, the flower beds are wilting and weedy. In the corridors and lounges, artwork has disappeared. And yet Sandy Weiswasser, a retired sixth grade teacher who for 18 years has given hundreds of people free tours of the John F. Kennedy Center for the Performing Arts, keeps reporting for duty. In a dogged demonstration of love and loyalty for an institution that has elevated life for her and millions of visitors, she still arrives every Monday for her tour day, knowing she may soon find the doors locked. “This place used to be really thriving and busy and crowded,” Ms. Weiswasser, 87, said. “Now it’s a black hole.”