9. The Sanitary Market:

Designed by Daniel Huntington in 1910 and expanded in 1942, this large complex took its name from the fact that horse-drawn carts were not allowed inside. Architect Fred Bassetti headed up an extensive remodel in 1981. It now houses a maze of shops, delis, stalls, and diners, many of which have been in continuous operation for decades. The Three Girls Bakery, for example, has sold bread and pastries here since 1912.