It can't be viewed from the street, but it can be seen via Street View. The answer to this riddle is the Batcave and Google Street View's See Inside feature shows off the interior of Bruce Wayne's hidden in plain sight hideout in Batman v Superman.
Google and Warner Bros have collaborated on an inside look at the mansion set of Bruce Wayne and the world's greatest detective. The mansion is nestled inside of the Orion Oaks county park in a suburb of Detroit.
Upstairs is all billionaire playboy, with its wide marble tile and ultra-modern interior. The interior is surrounded by huge glass windows, the kind big enough for power player with a troubled past and dark secret to feel disconnected from the city that consumes so much of his time.
After leaving the living room, things get a little batty. There's a huge tunnel and beneath that lies the famed Batcave.
The See Inside look at the Batcave showcases many iconic vehicles and gear, including the Batmobile and Batwing. There are plenty of firearms, experimental weapons and a shop for machining new ones.
There's also a tech lab and what looks to be a firing range into the Batcave. Inside of the tech lab, there's some exoskeleton armor that appears to be nearing completion and probably the most powerful gaming rig ever pieced together.
"Batman v Superman: Dawn of Justice" hasn't been received all that well in the court of public opinion, with lowly 29 percent positive review rating on Rotten Tomatoes and an average score of a mediocre 7.5 on IMDB. But that's not stopping people from going to see the movie, which premiered on March 25.
The movie raked in a record setting haul of $170.1 million during its opening weekend. That evidences show how people felt about the review scores, according Paul Dergarabedian, senior media analyst for the tracking service comScore
"No one cared about the reviews - they didn't matter," said Dergarabedian. "People just wanted to see this movie and this classic matchup between two titans of the superhero universe."