Tottenham Hotspur FC recently began construction on their new 56,000-seat replacement for the venerable White Hart Lane. Originally designed by Archibald Leitch, WHL has seen numerous updates over the years, so much so that its original structure is barely visible today.

What a journey we’ve been on? What started back in sleepy Dayton, Ohio has taken us to the historic KeyArena in the great Pacific Northwest to the Jacksonville War Memorial Coliseum in Florida and finishes back in the Midwest in Indianapolis, fittingly home to the NCAA.

Sixteen teams are left in the NCAA Men’s Basketball Tournament and these four venues play host as the field is narrowed to four. Two 20,000-seat pro arenas – one Midwest-honest, the other LA-glitz and glamour, and two oversized football stadiums – one University-owned and regularly converted to basketball and the other a big ol’ Southern football mansion, definitely not suited for basketball. This is the big time, with lots of fans, media and businesses wanting in, so sometimes the buildings are oversized and not quite right. The games, however, are set to impress.

So it’s down to two – two remaining NFL-to-LA stadium plans that is. Following news that AEG has dropped its downtown stadium plan, we are left with the San Diego Chargers – Oakland Raider possible stadium share in Carson, CA and an updated Stan Kroenke-led plan to build a new $1.8 billion stadium on the site of the old Hollywood Race Track in Inglewood, CA.

The 2015 NCAA Men’s Basketball Tournament First Round other half continues with an eclectic group of arenas designed by four architects, none of which are industry giant Populous. However, it’s Seattle’s KeyArena, designed for the 1962 World’s Fair, which really gets us excited.

Frei Otto, German architect and structural engineer, died March 9 2015, just days after learning he had won architecture’s highest honor, the Pritzker Prize.

Otto’s collaboration with architect Gunther Behnisch on Munich’s Olympic Stadium was his most well-known project but what will its legacy be?