Arch Rock is a limestone arch, the top of which is 149 above Lake Huron. The opening is 49 feet high, The arch was formed by receding water in ancient geological time, proving that at one time the island was entirely covered with water.

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A vividly colored mesa, the Painted Desert, with its buttes and ridges, can be seen for miles along the Little Colorado. It is a portion of the Petrified Forest National Park which was established i 1895, some 17 years before Arizona became a state.

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Christ Church is a constituent college of the University of Oxford in England. Founded in 1546 by King Henry VIII, the college is uniquely a joint foundation of the university and the cathedral of the Oxford diocese, Christ Church Cathedral, which also serves as the college chapel and whose dean is ex officio the college head.

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Tom Tower is a bell tower in Oxford, England, named after its bell, Great Tom. It is over Tom Gate, on St Aldates, the main entrance of Christ Church, Oxford, which leads into Tom Quad. This square tower with an octagonal lantern and facetted ogee dome was designed by Christopher Wren and built 1681–82.

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The Cathedral of St. Michael and St. Gudula is a medieval Catholic cathedral in central Brussels, Belgium. It is dedicated to Saint Michael and Saint Gudula, the patron saints of the City of Brussels, and is considered to be one of the finest examples of Gothic architecture.

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