St. Mary's Institute of O'Fallon
St. Mary's Institute of O'Fallon, Historic convent and school in O'Fallon, United States
The Gothic Revival motherhouse spans three stories with interconnected wings, featuring two chapels, an academy, a dining room, a kitchen, a gym, and an infirmary.
The initial section of St. Mary's Institute, designed by Henry Kister, was constructed in 1874 and later expanded through additional wings until 1997.
The complex includes the Motherhouse for the Congregation of the Sisters of the Adoration of the Most Precious Blood, maintaining religious educational traditions.
The property encompasses 42.6 acres with eleven contributing buildings and extends to 204 North Main Street, where part of the structure houses O'Fallon City Hall.
The national historic district contains a cemetery and exhibits both Gothic and Colonial Revival architectural elements across its extensive grounds.
Location: O'Fallon
GPS coordinates: 38.81361,-90.70194
Latest update: September 23, 2025 14:25
Weldon Spring Ordnance Works
13.7 km
Harlen C. Hunter Stadium
17.6 km
Fort Zumwalt Park
2 km
Daniel Boone Bridge
14.4 km
Weldon Spring Conservation Area
16.5 km
Bowlero
3.1 km
Veterans Memorial Bridge
17.8 km
Golden Eagle-Toppmeyer Site
19.4 km
African Church
18.9 km
Frenchtown Historic District
19.5 km
Novus International Headquarters
11.8 km
Wentzville Tobacco Company Factory
13 km
Lindenwood Hall
17.8 km
St. Charles Odd Fellows Hall
19.5 km
Meier General Store
19.1 km
Samuel Stewart Watson House
17.3 km
Newbill-McElhiney House
19.4 km
Stone Row
19.4 km
Brussels Historic District
18.1 km
Midtown Neighborhood Historic District
19.3 km
Old City Hall
19.5 km
Marten-Becker House
18.7 km
Oliver L. and Catherine Link House
18.4 km
Cave Springs Lanes
11.7 km
Lindenwood Neighborhood Historic District
18.1 km
Dr. John H. Stumberg House
19.3 km
Play Street Museum - St. Louis
18.8 km
J. Scheidegger Center for the Arts
17.6 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes