There's a lot of raw historical value in abandoned buildings - structures left seemingly untouched and left behind over the decades. While some abandoned buildings in Ottawa have rightfully been restored, quite a few have been left dormant.\nMost abandoned buildings in Ottawa typically get demolished but there's still a small selection scattered within and outside the city limits that can still be explored. Whether you're looking for an old Soviet radar site or an old military base, there's ought to be a place you have yet to explore.\nSee these abandoned buildings before they're shut down due to crowds. Here's 8 abandoned spots near Ottawa that are totally worth visiting:\nvia @rorywass\nCFS Lac St. Denis\nDistance: 1 hr. and 30 minutes\nWhat was it: Former Canadian Forces station\nA hugely underrated 5-story abandoned military complex that stands high up on a hill near the lake of the same name. The place is riddled with graffiti now, but it's still open for exploration.\nvia @veveordie\nWillson Carbide Mill\nDistance: 45 minutes\nWhat was it: An old carbide mill\nLocated near Meech Lake in Gatineau Park, these ruins are accessible by trail and have gained a lot of popularity in recent years. Head out early in the morning to avoid the crowds. Generally speaking, the trail itself is well-maintained and not too strenuous.\nvia @bjhart0\nStony Swamp Ruins\nDistance: 20 minutes\nWhat was it: An old house\nLocated in the Greenbelt in Stony Swamp is early evidence of some of Ottawa's first settlers. You can find the ruins of this old stone house right off Trail #26.\nvia @theklattinthehat\nMackenzie King Estate\nDistance: 45 minutes\nWhat was it: Former Prime Minister Mackenzie King's estate\nThe Estate itself is located right on Lac Kingsmere and has since been restored and is in good condition. What's more fascinating on the property is King's collection of ruins that are scattered across the estate to explore.\nvia @ottawa_magazine\nOttawa Jail Hostel\nDistance: Right beside the Rideau Centre\nWhat was it: The Carleton County Gaol (Ottawa Jail)\nSome of Canada's most notorious criminals were hung here and some would argue that they've seen their ghosts roam about the former prison's halls. The prison complex is now privately owned and is a low accommodation hostel in the downtown core of Ottawa. You can book a budget room and stay overnight in the jail cell of a former criminal right here.\nvia @barlowc\nBrockville Railway Tunnel\nDistance: 1 hr.\nWhat was it: Canada's first railway tunnel.\nThough you won't be able to explore the tunnel in its entirety, a section of the abandoned railway is located right in downtown Brockville for easy accessibility.\nvia @travelmetric\nDiefenbunker\nNow preserved as a museum, this abandoned former nuclear fallout shelter is a great place to take photographs and to explore. The bunker goes deep, so if you're claustrophobic, prepare yourself. Admission for adults is $14.00 and $10.00 for students\nvia @nightly_adventures\nRideau Trail Car Dump\nDistance: 20 minutes\nWhat was it: Car dump\nYou can find this old dump west of Ottawa. Plenty of vintage cars from the 40s have been scrapped here and their bodies are still in actually relatively good condition. The coordinates of the exact location are hard to pin down, but Capital Gems has a good waypoint linked here.