The main environmental challenge of the 21st century is poverty. When you don't know where your next meal is coming from, it's hard to consider the environment 100 years down the line.
Can space break? I mean the space of art galleries. Over the past 100 years, art galleries have gone from looking like Beaux Arts salons to simple storefronts to industrial lofts to the gleaming giant white cubes of Chelsea with their shiny concrete floors.
I think I'd have to say my favorite IWC. They have been around for so long and the craftsmanship is top notch. A watch maker that has been in business over 100 years has to know what they are doing.
The Halifax area has long played a major role in Canada's military operations, being the port of departure for convoys, naval task forces and army units over the past 100 years or so.