Short answers, pulled from the story.
On the 7th of March 1945, troops of the U.S. Army's 9th Armored Division captured the Ludendorff Bridge at Remagen during Operation Lumberjack. German defenders had failed to demolish it, leaving it the only one of twenty-two Rhine crossings still standing. Six divisions crossed before the bridge collapsed on the 17th of March 1945, ten days after its capture.
Karl Wiener, an architect from Mannheim, designed the Ludendorff Bridge during World War I. The bridge was 325 meters long, with a clearance of 14.8 meters above the Rhine's normal water level and a highest point of 29.25 meters.
The Ludendorff Bridge collapsed on the 17th of March 1945, ten days after American forces captured it. Death toll figures vary by source: one account records 18 U.S. Army Engineers killed; another gives 28 killed and 93 injured.
The Remagen Peace Museum was established in the surviving bridge towers of the Ludendorff Bridge. Mayor Hans Peter Kürten pursued the project for years, with negotiations with German Federal Railways alone lasting seven years. He went public with a plan to sell bridge stones sealed in synthetic resin on the 7th of March 1978, raising more than 100,000 Deutsche Marks.
The Apollinaris Church in Remagen was built between 1839 and 1842 on the site of the medieval Church of St. Martin. According to local legend, the remains of Saint Apollinaris were brought ashore at Remagen in 1164 when a ship carrying relics from Milan to Cologne mysteriously stopped in the river.
The Arp Museum is housed in the historic 19th-century railway station at Rolandseck, about five kilometers north of Remagen, and is devoted to the work of artist Hans Arp. The station was revived in 1964 by Bonn art dealer Johannes Wasmuth after it had been neglected and listed for demolition following World War II.