For a small compact town, which probably doesn't get very many tourists, Oldenzaal's visitor attractions are really well signposted . Despite the fact that nothing is much more than 500 metres radius from the market square and that the inner ring road (which probably follows the foundations of the old city walls) kinda tells you when you are heading out of town there's a signpost on every corner pointing you in the relevant direction to all four of the main sights.
Talking about "pointing...in the relevant direction" - is it just a trick of the light or is the little guy on top of the sign a particularly well-endowed flasher?
The Netherlands' official tourist service is the VVV (whatever that stands for I don't know) and every town of note has at least one office. The VVV has multi-lingual staff who can assist with pretty much any tourist's query from accommodation to zimmer frame hire (I just made that last one up 'cos I couldn't think of anything else that began with "z" - but then...maybe they can!).
As well as dispensing advice they stock the usual range of freebie leaflets as well as maps, guidebooks, gifts and souvenirs for sale.
Here in Oldenzaal the VVV office is on the square opposite the Basilica and is open Mondays from 1300 to 1700, Tuesdays to Fridays from 1000 to 1700 and on Saturdays from 1000 to 1600. To contact them by phone the number is 0541 514023 and the website is www.vvvoldenzaal.nl where you'll find a comprehensive list of all the bars (as well as some other less useful stuff).
In the 17th century Oldenzaal was a walled city, complete with moat and all the other bits and bobs that walled cities have. Unfortunately the modern town has lost much of its historical remains over the years (although the centre is still pretty much laid out as it would have been in those days, it's just the buildings that have changed) but a casual wander reveals traces of the old city.
I think there are guided tours available through the VVV Tourist Office but it's also quite interesting to find things for yourself and then try and make sense of them when you get home.
The local tourist office is situated in center city opposite the St. Plechelmus church in the former J.A.A. Herman school buiding.
St. Plechelmusplein 5
7571 EG Oldenzaal
City counsel link