Hidden away on Chicago's north side, this secret memento of the city's architectural history is a large, rambling Victorian-style cemetery. Filled with winding roads, elaborate tombs, and 19th-century landscaping, Graceland Cemetery can be explored by car, bike, or on foot. This is no ordinary graveyard – known as the "Cemetery of Architects," Graceland is the final resting place of famed architects such as Daniel Burnham, Louis Sullivan, and Mies van der Rohe. You can also visit the graves of artist Laszlo Moholy-Nagy and boxer Jack Johnson, and view striking monuments such as Sullivan's Getty tomb and the Schoenhofen Pyramid Mausoleum.