With the Orioles hosting the Yankees today, I thought about how the Yankees - and also the Red Sox - often have a lot of their fans at Camden Yards whenever their teams visit Baltimore. (Listening to the game on the radio, I heard a huge cheer as the Yankees tied the game in the ninth, even though the game is in Baltimore.)
That led me to wonder: what other teams are known for playing host to lots of visiting-team fans? I know that in college football, Vanderbilt largely seems to exist as a way for fans of the other SEC teams to spend a fall weekend partying it up in Nashville and (likely) seeing their team win. Elsewhere, Indiana draws a lot of Ohio State fans when the Buckeyes come to visit, and the same was true of Baylor whenever Texas/A&M/Tech came to town - at least until Baylor became a good team.
In the NFL, the Los Angeles Chargers appear to have that sort of reputation. What other teams throughout the country, in whichever league, are known for having fans of the opposing team fill their stadium (whether it be visiting-team fans in general, or those of a particular opponent)? I look forward to hearing more!