There are many restaurants within walking distance of Monument Circle. All price ranges, some chain restaurants, some local establishments. Lots of sports bars, since you're not far from the stadium. Quite a variety to choose from. Not knowing your tastes or your budget, I think your best bet is to check the list of restaurants provided near the bottom of the Monument Circle page and read the reviews left by other TripAdvisor users. We certainly enjoyed the meal at the Slippery Noodle Inn when we stopped in Indy last September just as much as previous visits (we go there for the live music). In the past, we enjoyed burgers at the Brothers Bar & Grill. With our kids, we enjoyed pizza a block from the Circle. Hope this helps!!

It is inside the Monument, when you walk in the door, look to the left, there's a cashier, there are many items to choose from!

I think what you’ve heard about is probably the Eli Lilly Civil War Museum which is located beneath the monument. It has “”tunnels” between exhibit areas and somewhat of a catacombs feel to it. The water leaks have been addressed and it is again open to the public free of charge. Check its website for days and times of operation. Another possibility is the infrastructure for the water supply to the fountains and pools. The water is fed from underground wells which would require access tunnels of some sort for maintenance and repair.

We park on the street but if you are there for more than a few hours I would suggest a parking garage. They are close to the circle

Sorry that one I don't know. I just sit in steps around it and relax.

The observation deck near the top of the monument is open to the public free of charge Wed – Sun, 10:30am to 5:30pm during the months of May through October and Fri – Sun with the same hours the rest of the year. No reservations are needed but the observation deck may close for severe weather.

I would suggest reserving a time slot with the carriage ride service of your choice. You can ask questions about the various routes and duration when you make your reservation. Enjoy!

The only one on the circle is the Columbia Club, but there is no reason to stay right on the circle. The Sheraton, Conrad and Hilton Garden Inn are on the block, but there is the Hilton, Hyatt, Hampton, Westin, and a couple of Marriott"s all within walking distance and downtown is very safe.