From harvesting, to transport, to arrival in D.C., to the lighting, check out photos of the U.S. Capitol Christmas Tree's journey from the forests of Colorado to the nation's capital.

Photos from American Trucking Associations' 2020 Management Conference & Exhibition, held virtually Oct. 19-23 and 26-28, 2020, due to the coronavirus pandemic.

Navistar, based in Lisle, Ill., produces International brand trucks. Click here to check out some of the company's trucks.

Volvo trucks are assembled in 15 countries across the globe. The company is based in Gothenburg, Sweden. Here are photos of Volvo trucks.

Mack Trucks, with its recognizable Mack Bulldog, is owned by Volvo and headquartered in Greensboro, N.C. Check out some photos of its trucks and products in the gallery.

Western Star is headquartered in Portland, Ore., and is a brand of Daimler Trucks North America. Here are some photos of Western Star trucks.

Peterbilt Motors Co., a Paccar company, is headquartered in Denton, Texas, where its primary manufacturing facility is also located. Here are photos of Peterbilt trucks.

Tesla, a company best known for its industry-first electric vehicles and unconventional CEO, is scheduled to enter the tractor OEM space in the coming years. Here are photos of its electric Semi Class 8, which was unveiled in 2017 and is slated to enter production in 2021.

Freightliner, a subsidiary of Daimler Trucks North America, is based in Portland, Ore. Check out photos of some its latest trucks and products.

Kenworth Truck Co. is headquartered in Kirkland, Wash., and is a unit of Paccar Inc. Check out some photos of Kenworth trucks.