Bridges, Arches, Columns, Tunnels and Walls

Funicular in Bergen.

This is the view of old town - the wharf area (a UNESCO site).
My hotel was next to that three masted ship.
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The Balver Höhle (Balve Cave), at the north end of the 'Sauerland', south of Dortmund, ...



... is the biggest cultural cave in Europe ...



... for up to 2,300 spectators (rock concerts, symphony concerts only 1,250)

Funicular in Lisbon.

Eiffel elevator in Lisbon.

Sala Silver Mine is a mine in Sala Municipality, in Sweden. The mine was in continuous production from the 15th century until 1908. Additional mining occurred in 1950-1951 and also in 1945-1962 in Bronäs Mine, located nearby. There is a hotel room 155 meters under earth. You will get an eveningmeal and next morning breakfast served by one of the miners

Oppenheim is a town in the Mainz-Bingen district in Rhineland-Palatinate, Germany, famous for the wines (especially from the Oppenheimer Krötenbrunnen vineyards) with a nice medieval olt town



But there's a town below the town ...



The Oppenheimer Kellerlabyrinth (cellar labyrinth of Oppenheim) is a complex system of cellars inside the loess layers below the old medieval town. The complex system of connected cellars has numerous levels of passages (five are known), most of them connected in a weird and complex way.



There is a rather logic theory, which says that the rapidly growing commerce, after the town was declared a Freie Reichsstadt (Free Imperial City) in 1226, caused an urgend demand for safe storage space. But unfortunately the town is located between the Rhine river and the steep vineyards, so there was no room to build above ground. The merchants started to dig cellars below their houses in a rather uncoordinated way. The cool cellars were ideal to store food, and even the mined material was sold.



The city maintains the tunnel system (40 km/nearly 30 miles) which connects most of the city’s home cellars. There are guided tours through the system. However, most residents keep their cellar doors locked and off limits to the city tours.

In Cologne, you can walk for 140 meters through the Roman sewerage canal ...



... and step down 14 meters to the medieval Jewish mikwe

Smuggler's tunnels Hastings UK

Skywalk, Grand Canyon (window cleaning)

Corinth Canal....

Donaustadt Bridge, Vienna

Ugh, sez me and some other people..
re futzing with the grand canyon edges.
There was big noise about it when it was decided on and built.

(I once declined a project to design a pool to cantilever over a california precipice along with corresponding stuff. Well, me and others re the engineering. Just... no.)

This is the Corinth Canal taken from our boat in May 2012.

One of the bravest women I've ever known, who happens to be a hell of an excellent driver and solo race ocean sailor and hard to scare, was afraid of this bridge, the Richmond-San Rafael, crossing San Francisco Bay.

http://en.wikipedia.org/wiki/Richmond–San_Rafael_Bridge



from the Richmond end:



wiki-
View from the east end of the bridge (Richmond) looking southwest toward Southern Marin. San Quentin State Prison is just beyond the edge of the picture on the right. Top right above the bridge is Mount Tamalpais. The broken pilings in the water in the middle left of the picture are what's left of the pier where the Richmond–San Rafael ferry used to dock before the bridge was built.

Not southwest from Richmond to me in memory but I'm probably wrong, gotta look at a map.

edit - I googled - it's somewhat northwest from Richmond point to the San Rafael point.

I've driven over that bridge quite often during my younger days, and never thought twice about being afraid.

Lot of seismic stuff went on. I've no opinion on how fixed it is.

Chesapeake Bay Bridge and Tunnel--with passing aircraft carrier.







I was riding this bridge on my them new motorcycle tooling along at the speed limit--that day 50 mph (speed limit set by wind off of the Atlantic) when I was passed by two of these off in the bay.



Rap

The Eiffel Tower from Pont Alexandre 111, Paris

Cheddar Gorge. Compared to the Grand Canyon it usually comes across unfavourably, except for this one, it's a lot greener than the Grand Canyon.

Bridge, connecting Dresden Cathedral (formerly Catholic Church of the Royal Court of Saxony) with the Dresden Royal Palace

Westminster Bridge, London