Here are some more places to visit while driving about the country. The Heidelberg Project is an outdoor art project in Detroit, Michigan. Specifically, it is in the McDougall-Hunt neighborhood on the city's east side, just north of the city's historically African-American Black Bottom area. The Villa Maria, as it was originally known, was built in 1923 and designed by well-known architect Frank Riley. As the house grew, people, driving by would stop and ask if they could look around. The owner, Alex Jorden thought if people wanted to wander about and look, maybe they be willing to pay for the privilege. He charged a nominal fee but the place wasn’t actually open to the public until the 60s. When it did finally open as a tourist attraction, the name was changed to the House On The Rock, and the name has stuck until today.