Glenfinnan Viaduct

"This giant curving viaduct is an iconic scene for any Harry Potter fans and hopeful Hogwarts attendees. But even if the Hogwarts Express hadn’t been shown chugging along the railroad on its way to the famous school of witchcraft and wizardry, this viaduct would still deserve to be an icon in its own right. The setting promises excellent views as the viaduct overlooks the waters of Loch Shiel and the Glenfinnan Monument. Built in the 1890s, this railroad viaduct was the first structure in Britain to be built with mass concrete. It was this innovative building method that allows the overpass to remain in such good shape today. The viaduct was constructed by Robert McAlpine and Sons under the control of Sir Robert McAlpine, who became so fond of constructing in concrete that he was given the nickname “Concrete Bob.” The crew built the 100-foot-tall, 416-yard-long bridge along an elegant curve, which lets train passengers look out the window and catch fantastic views of the other end of the train chugging along the tracks against a backdrop of beautiful Highland scenery. Despite its importance as a civil engineering icon and the clear beauty of its surroundings, the railway didn’t gain fame until it was used in several of the Harry Potter movies. In particular, fans will notably remember the scene featuring the viaduct, the Hogwarts Express, and Arthur Weasley’s flying Ford Anglia. It’s even nicknamed the “Harry Potter Bridge.” The Glenfinnan Viaduct appears on some banknotes as well.  Apparently, since its brief role in the movies, the British Transport Police have had to put up signs to discourage trespassing following a number of near-misses between trains and Harry Potter fans, as the overpass is still very much in use. The diesel-powered West Highland Line frequently runs across it and there are regular steam-hauled excursions available in the summer. The iconic Jacobite steam train runs across the viaduct to Fort William and Mallaig. The train may pause at the viaduct, time permitting, to allow visitors to take in the magnificent views." - ATLAS_OBSCURA

"A train ride along the majestic Glenfinnan Viaduct built 100 feet above the ground." - Travel + Leisure Editors

"Today, the fern-filled hillsides surrounding the Glenfinnan Monument regularly fill with camera-toting tourists, all eager to see the historic Jacobite Steam Train—which serves as the Hogwarts Express in the Harry Potter movies—breeze across the elevated stone viaduct. More significant than the train, however, is the monument itself, which serves as a striking tribute to those who fought in the Jacobite Risings. Less than a year before the Battle of Culloden, Bonnie Prince Charlie raised his father’s Standard on this very land, marking the start of the Jacobite campaign. An army of 1,500 rallied around him, then marched as far south as Derby before the retreat that would seal their fate. In 1815, a nearly 60-foot monument was erected, with the long, kilted Highlander at the top representing the clansmen who gave their lives to the Jacobite cause. Travelers can make the dizzying climb to the top of the tower for unrivaled views of Loch Shiel, then tour the visitor center, which tells the story of Prince Charles and the 1745 Jacobite Rising."