Urban Spelunking in Search of Rooftop Tennis/Basketball Courts

For the last 4 months (since I moved into my current office building) I've asked around to everyone how to access this rooftop tennis and basketball courts and nobody I've talked to seems to know the answer. Here is a crude picture I took from my office. #humblebrag

My office overlooks a structure, I want to say it's a parking garage, that seems to be connected to the Plaza of Americas. When I look out of my window I can see a rooftop tennis court and full basketball court.

I have never seen anyone on it, ever.

My CEO has said that if I can figure out what it is and how to get on it, I'll be allowed to dick around and play tennis and basketball. The last two weeks I've been fervently asking around- building management, workers, The Marriot (which I thought was the proprietor as it seems to be right around that conference area they have)- and nobody seems to know anything about it.

**Update**

I got this note from Marriot:

Thank you for contacting Marriott. We appreciate the opportunity to provide you with information.

We contacted the Dallas Marriott City Center directly on your behalf and spoke with one of our colleagues. They are not aware of a full size tennis court, or a basketball court on a roof, in the area.

More information regarding this hotel's facilities and services may be found at the webpage below:

www.marriott.com/DALDT

You may wish to contact an associate at the hotel for further details. The contact information for this location is included below:

Dallas Marriott City Center
Phone: 1-214-979-9000
Fax: 1-214-953-1931 

***Update II***

Full disclosure, I am so terrible at things that involve spatial reasoning, things that include all of the following: driving, directions, parking, physics, geometry and exclusively abstract theories. That being said, I went on an orienteering mission to find a Tennis Court and ended up more confused than I began. I took a few pictures:

So I took the advice and went over to the parking garage. I took the elevator to the 11th floor (the highest allowed) and then had to take the stairs to 12, the top. Once I reached the apex, I found a door that was locked:

So I go back down stairs to the 11th floor and start snooping around some hallways above the Marriot. There is a testing company and I asked some employees but they were of no help. I went down the only hallway outside of that business and at the end of the hall there was a left and a right. To the left was a large, lit 'Exit' door that was locked and had a badge sensor next to a locked door that sounded like it had a server in it.

Down the other side of the hall was one door. I didn't take a photo of it because it was, for some reason, unlit and dark. I opened the door and I found myself circled back to the 12th floor door:

At this point I'm feeling like a first person shooter trying to learn a new map/world like Golden Eye or Silent Hill.

I resign myself to go home and get in the elevator when I notice the 12th floor has a star next to it. I took that exit and found a dark/closed/unmanned Dallas Regional Conference area.

**** Update III ****

It has since come to light why there was nobody in the Dallas Chamber and why everything was wide open, dark and seemingly empty.

Posted in April of 2012:

"The Dallas Regional Chamber announced Tuesday that it will move its headquarters within downtown Dallas from Plaza of the Americas to Lincoln Plaza.

The chamber, which employs 45 people, has leased the entire 26th floor at Lincoln Plaza, which covers 25,436 feet. The move is scheduled for the fall."

So, they are moving/have moved and there is nobody there. So either I get to figure this out and play tennis and basketball for free for a while or nobody that knows anything about it or how to open the door.

The whole place is empty but its open so I resume sniffing around. There are lots of empty conference rooms, break rooms, printer/office rooms and I think I hear someone rustling around in a supply closet so I call out and nobody is there that I can see/hear. Admittedly, I'm a little spooked. I continue snooping on tip-toe.

All the doors by the exits are closed except one to the very far left. It's sufficiently away from where I thought I heard someone but I couldn't be sure, so I'm weary about opening this door and letting it close behind me and me being stuck on a roof.

I venture out and I see a fence and I think "YES" this is where the tennis courts are, I've made it:

Then it hit me, "well heck, how does one get through that fence and no door?" So I venture further and see this. Really weird.

So, I turn around and take a picture of my office (the right side, 4th row from the bottom) from my vantage:

I'm done for the day, don't want to get stuck on a roof or get in trouble for trespassing.

****** Update IV ******

I go home and do some google/bing maps research. I see that I was outdoors on the opposite side, ostensibly separated by Dallas Regional Chamber:

So the next morning I'm resolved to figure this out.

******* Update V *******

So, I was advised it might be a good idea to call the Dallas Regional Chamber but I don't want The DRC to know anything about my attempts, or alert anyone really, because I don't want to risk my potential honeypot.

I went back up there this morning and the first thing I noticed was, again, The DRC was wide open, dark and empty. The place, I have surmised, is abandoned or maybe under the absent eye the Plaza of America's management group keeps it open for some reason, but its empty and everyone who worked there or had business there is obviously moved out and on to Lincoln Plaza (per the article I copied and pasted).

So knowing that I had a bit more confidence about roaming around and not getting in trouble for trespassing. I walk to where I was last at yesterday and figure I need to go on the opposite side. I find this hallway that looks to be the path. The tricky thing about this hallway is that I have to leave my bag as a door stop or else be at risk to be stuck in the hallway (the door says no re-entry on the backside), so now I'm bag-less. Notice the floors are torn up:

Upon reaching the end door, there happens to be a small, orange cone which works to my fortune because it too is an exit only/no re-entry door. Either management uses this trick or there is another rat like myself trying to figure out this maze. I prop the door open with the orange cone but am not too confident about it's holding power. And then, there it is. The promise land. I called my CEO. "Hey, you in the office? Go to my office, look out the window and take a picture. you'll know what I'm talking about."

 So, I figure this honeypot will be open to me at least through the holidays as traffic getting in to downtown is already light and people take vacations and all around half ass it. 

Anyone in Downtown Dallas up for a game of rooftop tennis or basketball?