San Diego

===Cityscape===
{{main|List of tallest buildings in San Diego}}
[[File:US Navy 110604-N-NS602-574 Navy and Marine Corps personnel, along with community leaders from the greater San Diego area come together to commemora (cropped).jpg|thumb|left|Aerial view of central San Diego]]
San Diego was originally centered on the [[Old Town, San Diego|Old Town]] district, but by the late 1860s the focus had shifted to the bayfront, in the belief that this new location would increase trade. As the "New Town" – present-day Downtown – waterfront location quickly developed, it eclipsed Old Town as the center of San Diego.<ref name=Cornerstone />

The development of skyscrapers over {{convert|300|ft|m}} in San Diego is attributed to the construction of the [[El Cortez (San Diego)|El Cortez Hotel]] in 1927, the tallest building in the city from 1927 to 1963.<ref>{{cite web |title=San Diego Timeline Diagram |url=http://skyscraperpage.com/diagrams/?cityID=120&searchname=timeline |publisher=Skyscraper Source Media |access-date=May 31, 2011}}</ref> As time went on, multiple buildings claimed the title of San Diego's tallest skyscraper, including the [[Union Bank of California Building]] and [[Symphony Towers]]. Currently the tallest building in San Diego is [[One America Plaza]], standing {{Convert|500|feet}} tall, which was completed in 1991.<ref name="EmpOneAmer">{{cite web|title=One America Plaza|url=http://www.emporis.com/buildings/118065/one-america-plaza-san-diego-ca-usa|archive-url=https://web.archive.org/web/20150223133323/http://www.emporis.com/buildings/118065/one-america-plaza-san-diego-ca-usa|archive-date=February 23, 2015|publisher=Emporis.com|access-date=May 16, 2009}}</ref> The downtown skyline contains no [[super-tall]]s, as a regulation put in place by the [[Federal Aviation Administration]] in the 1970s set a {{convert|500|ft|m|0}} limit on the height of buildings within a {{Convert|1|mi|adj=on|spell=in}} radius of the [[San Diego International Airport]].<ref name="500feetAirport">{{cite web|title=Airport Land Use Compatibility Plan for San Diego International Airport|url=http://www.san.org/documents/aluc/SDIA_ALUCP.pdf|publisher=San Diego County Regional Airport Authority|pages=51–52|date=October 4, 2004|access-date=May 16, 2009|archive-url=https://web.archive.org/web/20140630100212/http://www.san.org/documents/aluc/SDIA_ALUCP.pdf|archive-date=June 30, 2014}}</ref> An iconic description of the skyline includes its skyscrapers being compared to the tools of a toolbox.<ref name="SkyGrowsUp">{{Cite news|last=Bergman|first=Heather|title=San Diego's skyline grows up: residential towers filling some of the missing 'tools' as office projects are nearing completion|url=http://theheritagegroup.com/wp-content/press/062705.php|work=[[San Diego Business Journal]]|date=June 27, 2005|access-date=August 28, 2012|publisher=The Heritage Group|archive-url=https://archive.today/20130204070303/http://theheritagegroup.com/wp-content/press/062705.php|archive-date=February 4, 2013}}</ref>

There are [[List of tallest buildings in San Diego|several new high-rises under construction]], including two that exceed 400 feet (122 m) in height.