Check out Confluence.ORG which is devoted to photographing all major latitude/longitude intersections.

There's a 'town' about 40 miles SE of Timm's Hill called Poniatowski. It's easy to get to but so small that a lot of maps don't even acknowledge it. 

It's not much more than two bars, a cemetery and a few houses. But it's been visited by thousands of people from all over the world and received occasional media attention because it's where the principal latitude and longitude crosshairs on even the cheapest maps and globes intersect. That is, 45.0 N and 90.0 W. Halfway to the North Pole and halfway around the western hemisphere! Of the four spots like it on the globe, two (the southeast and southwest quadrants) are under water and the other (northeast) in the middle of China.

Mrs. Gisecki has a register of thousands of people from all over the world who have visited, played pool, and looked at the deer antlers.

When we were there a Polish wedding was going on in the church across the street.  With the ribbon festooned cars I had hoped it was some exotic ritual similar to crossing the the Equator.

In Gisecki's tavern there, you can join the 45 x 90 club by signing their register. The state has put up a monument next to the USGS benchmark. Oddly, the highway markers and T-shirts at Gesicki's refer to it as a Geological marker; I would have thought they'd consider it a unique Geographic location. 

Loretta Gesicki's late husband was the main force behind getting an exact survey done by the state and Univ. of Wisconsin. He also established the 45  x 90 club, the register for which is kept at the bar. 

It's closed on Sundays and Mondays. 

Thomas L. Schneeberg, whom I met when I visited has set up an electronic message board for visitors.  We were quite the site in the middle of a deserted cornfield as we we whipped out our identical Magellan GPS devices 

The town is named for King Stanislaw August
Poniatowski the last king of Poland in the late 1700's. 

Wisconsin folk singers, Peter & Lou Berryman, wrote a song about it: 

                             PONIATOWSKI
                      c 1988 P. & L. Berryman

1. Exactly half the way from the equator to the pole
   A quarter of the way around the planet as a whole
   It's very hard to find it on a map of county roads
   Ridiculously easy on a four inch globe

     (Chorus) PONIATOWSKI, PONIATOWSKI, PONIATOWSKI

2. Magellan's men said, "Captain have we gotten very far?
   We're writing to our mothers just to tell'em where we are."
   The captain said, "Our longitude is 50 on the dot,
   I don't know where we are but I can tell you where we're not."

3. A quarter of the way from top to bottom of our earth
   A quarter of the way around the planet of our birth
   Speaking cartographically it's not extreme to say
   It's the most important -towski in the U-S-A

4. What is on the tip of every schoolkid's tongue
   What I mean of course besides a wad of gum
   The name of a location every grownup knows
   Of a church, a couple of taverns, and a school that's closed

5. I asked an old cartographer where he would rather be
   He mumbled there's a place that's always fascinated me
   I'll probably mispronounce it he admitted with a sigh,
   It's P-O-N-I-A-T-O-W-S-K-I