Engineering marvels

I'll start: and not just the U.S- engineers from all over the world
-The Panama canal

@xyyz said
I'll start: and not just the U.S- engineers from all over the world
-The Panama canal

The Chunnel, stand at Dover and look across to France, there's a train running under all that water.

@XYYZ
Seikan Tunnel.
Earlier than the Chunnel and longer.

@wolfgang59 said
@XYYZ
Seikan Tunnel.
Earlier than the Chunnel and longer.

It was longer, wow, guess you win.

LOLWGURANIJIT

@XYYZ

Thy pyramids all over the world (and a few thousand years old)

@ponderable said
@XYYZ

Thy pyramids all over the world (and a few thousand years old)

Not just my pyramids ... ALL OF THEM

@Ponderable- Thy pyramids all over the world (and a few thousand years old)
Update:
1st--Pyramids (massive, designed & built in the bronze age)
2nd--The Chunnel & Seikan Tunnel. (tie)

@XYYZ
The Chrysler building.
Tallest building in world for just a year but far prettier than the Empire States.

St Paul's Cathedral (London)
Tallest building in UK for 250 years.
Burj Khalifa is almost 8 times taller.

@wolfgang59 said
@XYYZ
The Chrysler building.
Tallest building in world for just a year but far prettier than the Empire States.

St Paul's Cathedral (London)
Tallest building in UK for 250 years.
Burj Khalifa is almost 8 times taller.

8 times taller? Engineering advances in design, materials and trained/skilled construction labor. How about the longest bridge expanse; 3 come to mind without Google- In Louisiana, over the swamp lands or the Florida Keys bridge (if you add all the expanses as one) and in Japan. I don't know the names because I didn't look it up, more fun this way.

@XYYZ

The Dutch polders. One engineering work you actually can see from space.

@xyyz said
8 times taller?

Yep
St Pauls about 100m
Burj Khalifa about 800m

@shallow-blue said
@XYYZ

The Dutch polders. One engineering work you actually can see from space.

as you can the "chinese wall" another marvel 😉

@ponderable said
as you can the "chinese wall" another marvel 😉

The Hong Kong–Zhuhai–Macau Bridge, officially the Hong Kong–Zhuhai–Macao Bridge, is a 55-kilometre bridge–tunnel system consisting of a series of three cable-stayed bridges, an undersea tunnel, and four artificial islands. It is both the longest sea crossing and the longest fixed link on earth.

It's like an oversized version of the Øresund or Öresund Bridge, which is a combined railway and motorway bridge that becomes an undersea tunnel across the Øresund strait between Sweden and Denmark. It has a total length of 7.8 km.

The Boulder (Hoover) Dam.

Suez

Apollo program

Incan mountain buildings