The remaining casas colgadas or “hanging houses” in Cuenca Spain have been refurbished over and again. It is said that the entire face of the Huécar Gorge was once lined with hanging houses dating back to the 15th century, but now only three remain. If you’re curious about abstract art, combine this mysterious hanging architecture with a visit to the Museo de Arte Abstracto Español, whose founder chose to house the museum in one of the remaining hanging homes. Thankfully, the project became an opportunity to renovate and preserve one of these fascinating structures. A pedestrian footbridge across the gorge provides spectacular views of these houses, and of the lush gorge itself.