Every city has a lost building that remains a source of regret above all others.
New York's great lost building is probably Pennsylvania Station, an early-20th-century masterpiece torn down in 1963.
Chicago remains haunted by the 1972 destruction of Louis Sullivan's Stock Exchange, an event made doubly tragic by the accidental death of photographer and preservationist Richard Nickel as the building was being razed.
In Minneapolis, many still mourn the Metropolitan Building, demolished in the early 1960s, despite pleas from architects, historians and the general public to save it.
What about St. Paul? There are plenty of vanished buildings to choose from, but I'd nominate the Ryan Hotel as the biggest loss to the city.
Completed in 1885 and demolished with minimal fanfare in 1962, the Ryan wasn't quite in the Metropolitan's league as an architectural wonder, but it was a marvelous Victorian Gothic extravaganza with no peers in the Twin Cities.
It was built by Dennis Ryan, who had moved to St. Paul after making a fortune in gold and silver mining in Utah.
Knowing a mark when they saw one, St. Paul business leaders persuaded Ryan to sink about $500,000 into the hotel while they added another $250,000 (led by a $25,000 contribution from James J. Hill).