Jewel box is a term sometimes used in reference to the group of Major League Baseball ballparks built (or re-built) primarily between 1909 and 1915, after the wooden ballpark era and before the modern multipurpose stadium era. These parks featured two-tier grandstand design to take advantage of the steel structural supports and often squeezed inside a city block bringing fans right on top of the action. The "retro" ballparks constructed in the 1990s were an attempt to capture, to some degree, the perceived intimacy and baseball-focus of these parks. Jewel box ballparks by city Here is a list of the Jewel Box ballparks, their dates of use as a Major League Baseball facility^ (see note below), and some indication of their remnants, if known: Boston Braves Field (late 1915–1952) – Right field pavilion and concourse, as well as ticket office, survive as part of Nickerson Field on the campus of Boston University. Fenway Park (1912–present) – Still standing and active as of the end of the 2022 season. Brooklyn Ebbets Field (1913–1957) – Plaque marking its location. Apartment building on site. Chicago Comiskey Park (mid 1910–1990) – Outline of batters boxes with replica of home plate. Guaranteed Rate Field parking lot on site. Weeghman Park/Cubs Park/Wrigley Field (1914–present) – Still standing and active as of the end of the 2022 season. Cincinnati Redland Field/Crosley Field (1912–mid 1970) – Plaque and some old grandstand chair seats. Office park on site. Cleveland League Park (1910–1946) – Ticket office, part of grandstand wall, and ballfield. (Remnant of first-base grandstand was razed ca. 2005). Detroit Navin Field/Briggs Stadium/Tiger Stadium (1912–1999) – Abandoned for MLB but stood for nearly nine years. Demolition began summer 2008. After plans for saving the field and the dugout-to-dugout portion of the stands fell through in June 2009, demolition continued, and was completed at the end of the year. The ballfield and outfield flagpole remain in place. It is presently known as the Corner Ballpark. New York Polo Grounds (mid 1911–1957, 1962–1963) – Plaque marking its location, along with parts of old stairway down from Speedway. Apartment building on site. Yankee Stadium (1923–1973, 1976–2008; significantly altered 1974–1975) – Demolition completed in 2010 for public parkland. Philadelphia Baker Bowl (1895–mid 1938) – A Pennsylvania Historical marker stands on Broad Street just north of West Huntingdon Street, Philadelphia. The marker is titled, "Baker Bowl National League Park". Shibe Park/Connie Mack Stadium (1909–1970)