Found these 360 Degree London tours on http://www.london360.ca. Here are some of the tours downtown.

Dundas St east of Wellington St.
http://www.london360.ca/virtual_tours/general_sightseeing/040926_06vr

City Centre Towers
http://www.london360.ca/virtual_tours/general_sightseeing/040926_05vr

One London Place
http://www.london360.ca/virtual_tours/general_sightseeing/040926_03vr

Elsie Perrin Williams Memorial (former London Public Library and Art Gallery & Museum).
http://www.london360.ca/virtual_tours/general_sightseeing/040926_01vr

One London Place & London Life
http://www.london360.ca/virtual_tours/general_sightseeing/040926_02vr

Dundas St & Wellington St.
http://www.london360.ca/virtual_tours/general_sightseeing/040926_04vr

St. Paul's Cathedral.
http://www.london360.ca/virtual_tours/general_sightseeing/040926_12vr

St. Paul's Cathedral # 2
http://www.london360.ca/virtual_tours/general_sightseeing/040926_11vr

Dundas St & Waterloo St
http://www.london360.ca/virtual_tours/general_sightseeing/040926_08vr

Delta London Armouries Hotal & CityPlace Towers
http://www.london360.ca/virtual_tours/general_sightseeing/040926_07vr


Enjoy.