For me, all of the Greece levels in OG TR.
Oh, yeah, from that hub area with all the cool puzzles, especially the sword one, to the Midas Statue, to the arena, all of that section was gold.
Toby Gard certainly made Lara Croft sexy, but the marketing department focused on that aspect so hard to the point where there was practically nothing else beyond from how sexy Lara is. Which is completely misleading towards the game itself since as Ash mentions you could replace Lara with anyone else - male or female, ugly or sexy - and the game would be the same.
I seem to recall someone, probably around here, once said that Tomb Raider was just a 3D version of one of Core's earlier games, Rick Dangerous, I do believe. Haven't played it myself, but I have noticed some similarities between 2D cinematic platformers and Tomb Raider, IIRC the portable titles were cinematic platformers, at least during the Game Boy-era.
Actually speaking about the sexy discussion, wasn't there another rumor that Lara Croft was based on some dude's sister and that's why he was pissed?