A ceiling.

(Fairly large image file, but it's worth it to see how much incredible detail was put in a place where a person wouldn't normally look)

A hallway, massive enough to contain a five story building.

The main stairs, 30 m high.

More stairs. Look at the detail!

The stage area, viewed from the balcony.

The stage, concealed by the curtain.

The 8 ton chandelier.
( Cue the Phantom of the Opera theme.)

Exterior, modern-day Paris.

Exterior

Exterior, with busts of famous composers.

Close up of the busts of famous composers.

Statue on the roof (left-hand side)

Apollo's Lyre, with convenient censorship.

Statue on the roof (right-hand side)

The back of the Opera House.

Exterior, old-timey Paris.

Lithograph, circa 1900.