That actually would be cool if they dug down a part of the waterfront and had the ocean come right up to the glass. Im sure its not feasible because a storm surge would probably murder that thing...and take a few innocent bystanders with it. But none the less it would be pretty cool.
What's needed is something to make the building unique -- I suggest that a Water Barometer be attached or integral with a side of the building never subjected to direct sunlight
An Italian Physicist -- I know you are thinking Galileo -- well for you trivia fans -- it was actually Evangelista Torricelli -- invented the barometer when he was playing with a tube filled with Mercury
But if you use water essentially you convert inches to feet [mercury is about 14 times as dense as water] -- so the 30" of fair weather becomes 35'
Here's the plan that da Don should propose -- the building will be called Torricelli Place
A 50 foot tall glass tank with a space that is evacuated on the top [known as a Torricellian Vacuum] and a tray below connected to the harbor
As the tide goes in an comes out daily the level in the tray would move up and down by about 10 feet. On a Monthly Basis there are he monthly highest and lowest tides [Spring and Neap] and finally there is a variation associated with the distance of the moon from the earth -- the so-called Perigean Tidal Fluctuation -- all this roughly repeats over a 19 year period and so would the standing column above the tray
This would make Torricelli Place a truly unique building in the entire world as Boston's tides are some of the highest of any major city located on the ocean [as no one really lives on the Bay of Fundy]
The glass would be marked with tidal levels -- and as an added bonus for the AGW fans -- by drilling a shaft to bedrock and attaching a pointer -- you can even try to see the variation of sea level over the centuries
But the Torricellian Vacuum at the top makes the whole thing a water column barometer and so you also get the roughly one foot variation due to passing Nor'easters and other storms [like the Hurricane of 1938]
However, the atmospheric pressure is determined by the height of the column above the water level -- which as we can see with out eyes varies. So to complete the display attached to
One Torricelli Place -- you need a floating scale [small barge?] with a 35 foot tall vertical column. The pressure on the column is marked out in: inches of mercury equivalent, mm of mercury equivalent, milliBars for the Olde Schoole Meteorologists; Torr for the vacuum pumpers amongst us; fractions or 1+ fractions of Standard Atmosphere; and for the truly STEM minded kiloPascals
See for instance
https://en.wikipedia.org/wiki/Atmosphere_(unit)
Of course due to Global Warming or just a sea breeze the temperature of the glass will also cause expansion and contraction of the column and hence variation in the height -- so either the temperature needs to be held constant or a reference column is required with both ends sealed
