Title: 10 TOP Things to Do in Mercer County January 2026 | Expedia.ca # What to do in Mercer County, NJ ## Activities, attractions and tours ## Visit Mercer County Types of activities [Mercer County travel guide](https://expedia.ca/Mercer-County.dx553248635083909418) ![Spring in Princeton ](https://images.trvl-media.com/place/603263/5c7832da-ede6-4552-a274-6b85e66e751e.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Spring in Princeton ](https://images.trvl-media.com/place/603263/5c7832da-ede6-4552-a274-6b85e66e751e.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![This is the location of AT&T's "Pole Farm". In the early 1900's AT&T had their scientist's search out coordinates for the optimum area to send radio wave signals for telephone usage. After extensive research they chose this spot in my area for the construction of hundreds of telephone poles erected in a diamond shape pattern. There was one pole per country and it was pointed toward that country, predominantly in Europe and the Caribbean. So, in the early 1940's, for example, when president Franklin Roosevelt wanted to discuss WW2 war strategy with Winston Churchill in London, their telephone signals would meet at this spot. There is only one pole that remains standing and it is believed to be pointed toward Tel Aviv, Israel. The beginning of the end for the "pole farm" was the launch of the first communications satellite in the early 1960's](https://images.trvl-media.com/place/183612/ba990722-f580-4a4c-a3ac-4ecd9a8c010f.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Nassau street in Princeton. Spring 2015](https://images.trvl-media.com/place/603263/789d1f83-2de7-426c-b994-35c421635771.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Princeton campus](https://images.trvl-media.com/place/603263/4876fff3-967d-4d52-937f-a4d8f40b6723.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) --- - ![find price illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__find_price.svg) ### Explore activities Explore thousands of experiences from activities and attractions to day tours and transfer. - ![calendar shield illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__calendar_shield.svg) ### Book with ease Skip the line- book tickets online in minutes to top attractions with free cancellation on many activities. - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Treat yourself Members save % or more when you book activities. --- ## What to do in Mercer County --- --- Looking for fun things to do nearby? Check [things to do near me](https://www.expedia.ca/things-to-do-near-me) to find and book the best things to do, fun activities, and top attractions wherever you happen to be. --- ## Day trip destinations from Mercer County ![This is the location of AT&T's "Pole Farm". In the early 1900's AT&T had their scientist's search out coordinates for the optimum area to send radio wave signals for telephone usage. After extensive research they chose this spot in my area for the construction of hundreds of telephone poles erected in a diamond shape pattern. There was one pole per country and it was pointed toward that country, predominantly in Europe and the Caribbean. So, in the early 1940's, for example, when president Franklin Roosevelt wanted to discuss WW2 war strategy with Winston Churchill in London, their telephone signals would meet at this spot. There is only one pole that remains standing and it is believed to be pointed toward Tel Aviv, Israel. The beginning of the end for the "pole farm" was the launch of the first communications satellite in the early 1960's](https://images.trvl-media.com/place/183612/ba990722-f580-4a4c-a3ac-4ecd9a8c010f.jpg?impolicy=fcrop&w=512&h=288&q=medium) ### Pennington ![Morven featuring a house](https://images.trvl-media.com/place/6080423/1009981a-b82f-4645-89b1-f799c9b494ad.jpg?impolicy=fcrop&w=512&h=288&q=medium) ### Princeton ![New Jersey State House showing heritage architecture](https://images.trvl-media.com/place/6093617/e323a769-4033-4976-a065-429bb9a94b61.jpg?impolicy=fcrop&w=512&h=288&q=medium) ### Trenton ![Along the 1.5 mile Lakeside Loop Trail. Follows an old farm road along farm fields (corn) and through woods. Rated a moderate multi use trail but not strenuous. This park is a work in progress with portions unattached to each other at the moment. ](https://images.trvl-media.com/place/3000447462/2ccb3ea0-49f6-495d-92a0-bd5a3525d85d.jpg?impolicy=fcrop&w=512&h=288&q=medium) ### Millstone Township ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rental - Other - [3 Star Hotels in Trenton ](https://www.expedia.ca/3Star-Trenton-Hotels.s30-0-d6056692.Travel-Guide-Filter-Hotels) - [5 Star Hotels in Trenton ](https://www.expedia.ca/5Star-Trenton-Hotels.s50-0-d6056692.Travel-Guide-Filter-Hotels) - [Hotels near CURE Insurance Arena ](https://www.expedia.ca/CURE-Insurance-Arena-Hotels.0-l6093627-0.Travel-Guide-Filter-Hotels) - [B&B in Ewing ](https://www.expedia.ca/Ewing-Bed-And-Breakfast.d6034173-aaBedAndBreakfast.Travel-Guide-Accommodation) - [Cheap Hotels in Ewing ](https://www.expedia.ca/Ewing-Hotels-Cheap-Hotels.0-0-d6034173-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels with Free Breakfast in Ewing ](https://www.expedia.ca/Ewing-Hotels-Hotels-With-Free-Breakfast.0-0-d6034173-tHotelswithFreeBreakfast.Travel-Guide-Filter-Hotels) - 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