Following Niyazov's death, domes began to go out of fashion for buildings other than mosques, and public buildings began to take on more modernist characteristics, often with a motif reflecting the structure's intended occupant. For example, the Ministry of Foreign Affairs building is topped by a globe of the Earth, inside which is a conference center; the Development Bank building is topped by a giant coin; the Ministry of Health and Medical Industry building is shaped like a stylized caduceus, the dental hospital is shaped like a molar and the international terminal of Ashgabat International Airport is shaped like a falcon. The dominant characteristic of new construction since 1991 has been nearly universal facing with white marble. Another recurring motif is the eight-pointed star of Oguz Han, the largest of which is on the television tower and has entered the Guinness Book of World Records. The official Turkmen government guide book to Ashgabat refers to the star of Oguz Khan as "...the basic dominant of the whole architectural-art decor..."