4. Made in 1905, the largest log cabin ever
Location Found: Portland, Oregon Est. Build cost: $950,000*
When the Forestry Building was built in Portland, Oregon, in 1905, visitors unanimously declared it to be one of the biggest log homes on the planet. This magnificent building was built as a tribute to the well-known explorers Lewis and Clark.
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With dimensions of 206 feet long, 72 feet high, and 102 feet broad, it has remarkable specifications. Its construction required one million board feet of lumber, or about $950,000 in modern currency. Its timber originated from old-growth trees in neighboring Columbia County, which well-known lumber baron Simon Benson sold to developers.