More aliens! Man, does Supes look pissed on this cover(courtesy Pat Broderick)!
"The Island That Invaded The Earth!" by Len Wein, Curt Swan, and Murphy Anderson
"The Electronic Ghost of Metropolis" by Denny O'Neil, Swan, and Anderson
"The Menace Called 'It'!" by Leo Dorfman, Swan, and George Klein
"The Skyscraper That Screamed For Its Life" by Eliott S. Maggin, Swan, and Anderson
"Danger--Monster At Work!" by Wein, Swan, and Anderson
"Fury of the Energy-Eater" by Wein, Swan, and Anderson
This story features a particularly effective opening, when the bad guy in question(aka known as The Galactic Golem), walking a lonely road, comes across a "Metropolis: Home of Superman" billboard. In his rage, he smashes the sign to bits. He turns, and sees a little dog. He leans over the dog, gently pets its head, and walks off.
The entire two-page sequence is almost wordless, and its very moody and powerful. I'm not known for being a big Curt Swan fan, but this is one of the best Superman story openers I've ever read. If this were done nowadays, the bad guy would slaughter the dog, just so we get hit over the head of how evil he is.
Not a bad collection...hey, isn't Supes an alien?