Thaddeus Kosciuszko National Memorial
Visit the house where wounded Polish freedom fighter Thaddeus Kosciuszko lived and hear how this brilliant military engineer designed successful fortifications during the American Revolution. See the room where he received notable visitors such as Chief Little Turtle and Thomas Jefferson.
About under an hour from Philadelphia and 2 hours from Baltimore by car.
Fees & passes
Free. No entrance fee here.
Hours
| National Memorial | Varies by day ▾
|
Hours by date. Standard hours apply on every date not listed.
| Dates | Hours |
|---|---|
| Standard hoursNow |
|
| Nov 11, 2026Veterans Day | Closed |
| Dec 25, 2026Christmas Day | Closed |
| Jan 1, 2027New Year's Day | Closed |
When to go
July draws the most visits here and March the fewest, averaged over 2022 to 2025.
No campgrounds, no webcams, no things to do or events in Park Service data. What is here comes from the official page. The rest lives there.
Checked nightly. Modules appear as soon as the Park Service publishes the data.
Explore
Map
Interactive map by the National Park Service
Historic landmarks nearby
_in_Philadelphia_20240529.jpg/960px-OLYMPIA_(C-6)_in_Philadelphia_20240529.jpg)
Public land nearby
Distances are approximate. Wilderness Atlas publishes a center point and an acreage for each area rather than a boundary, so each area is treated here as a circle of the same size and the figure is the gap to that circle.
Guidebooks for the Mid-Atlantic
We earn a small commission if you buy through these links. It does not change what we list.
Titles come from Open Library's catalog, matched by subject.
Reference
Weather & climate
Summers are typically hot and muggy, fall and spring are generally mild, and winter is cold. Snowfall is highly variable, with some winters bringing only light snow and others bringing several major snowstorms, with the normal seasonal snowfall standing at 22.4 in (57 cm). Precipitation is generally spread throughout the year, with eight to twelve wet days per month.
Questions people ask
Does Thaddeus Kosciuszko charge an entrance fee?
No. Thaddeus Kosciuszko is free to enter.
Source: National Park Service
What are the hours at Thaddeus Kosciuszko?
Standard hours are 12:00PM - 4:00PM on Sunday and Saturday, and it is closed on Monday, Tuesday, Wednesday, Thursday, and Friday. Dated exceptions are listed under Hours.
Source: National Park Service
How busy is Thaddeus Kosciuszko?
1,664 recreation visits in 2025, number 380 of 387 units that report visitation.
Source: Most visited parks
Is there cell service at Thaddeus Kosciuszko?
At the park's reference point, FCC coverage maps show Verizon 5G, AT&T 5G, and T-Mobile 5G. Coverage inside the park varies by location.
Source: FCC Broadband Map
What is the weather like at Thaddeus Kosciuszko?
Summers are typically hot and muggy, fall and spring are generally mild, and winter is cold. Snowfall is highly variable, with some winters bringing only light snow and others bringing several major snowstorms, with the normal seasonal snowfall standing at 22.4 in (57 cm).
Source: Weather & climate
Follow this park
- Alerts feed (RSS)
- Every active Park Service alert for this unit, one item each, rebuilt with the nightly data refresh.
- Add dates to your calendar (.ics file)
- Fee-free entrance days that apply here and each published hours exception, as all-day events.
More in Pennsylvania
