Head south of downtown to historic Old Louisville, an enclave of Victorian buildings, brick walkways, cast-iron gas lamps, courtyards, fountains and statues.

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After having success with DC comic book characters (a result of being owned by Warner Bros.), TT Games has partnered with its archrival, Marvel Entertainment, to give more than 100 superheroes such as Spider-Man, Hulk, Iron Man, Thor, Wolverine and Captain America the brick treatment.

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The corrosive nature of the ground soil and pressures from a nearby brick wall and telecom unit may have caused a fracture in the cast iron mains pipe, the HSE said in its report.

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