When people think of Batman and his world, one of the things that first springs to mind is his swanky Batcave.
Initially conceived as merely a hidden tunnel that went from Wayne Manor to a battered old barn where the Batmobile was stored, the Batcave has gone on to become a huge piece of Bat-lore and a huge working environment filled with so many wonderful toys.
Anyone with even a passing interest in Batman is well aware of the advanced technology computer systems at Batman's fingertips in his underground lair. And likewise, it's no secret that his Batmobile and so many other vehicles are all safely kept in the Batcave.
What we're looking to explore here though, are the slightly more random pieces of treasure that can be found lurking under the confines of Wayne Manor.
Calling Batman a hoarder would likely be an understatement, for the World's Greatest Detective has a ludicrous amount of gadgets, keepsakes, trophies, and timely reminders all stored in the Batcave.
Some may be fun, some may be morbid, and some may be heartwarming - but regardless, they're all pieces of Batcave treasure.
10. The Mechanical T-Rex
In terms of attention-grabbing trinkets, few things grab the attention more than an oversized animatronic dinosaur.
First appearing in 1949's Batman #35, the origin of the towering T-Rex can be traced to a run-in with an underhand fella by the name of Stephen Chase.
When industrialist Murray Wilson Hart creates the Dinosaur Island theme park brimming with mechanic dinos, he calls upon Batman and Robin to test out the accuracy of his work. The plan was for the Dynamic Duo to spend thirty-six hours in Dinosaur Island, without any weapons, and with the simple task of surviving.
Things go array for our heroes, of course, when career criminal Chase ends up taking control of Dinosaur Island and orders the animatronic beings to kill off the Caped Crusader and his trusty Boy Wonder.
As ever, Batman and Robin manage to overcome the odds, reprehend the bad guy, and save the day - and their reward was getting to take a hulking T-Rex back to the Batcave.
Few Batcave artefacts have been destroyed quite as much as the T-Rex over the decades, yet Alfred has always been there to pull off a quick rebuild and repair job whenever the need has arisen.