Thanks for BA, naomi.
The two sequences I got from clue 1 alone were
High Level, Swing, Tyne, Millennium - bridges over the Tyne, going Eastwards.
Sharp, Principal, Diffuse, Fundamental - electron orbitals, in order of increasing angular momentum.
I bet there are generations of chemists who have wondered why electron orbitals and the corresponding blocks in the Periodic Table are called s,p,d and f. The terms date back to the days of spectroscopy.