In Barcelona, the curvy Palau Guell should reopen in 2008, offering the public a chance to see one of the finest interiors designed by the city's most famous architect, Antonio Gaudi. To track down more great architecture by Gaudi and his Modernista buddies, stop into the tourist information office (at Placa de Catalunya), where you can get discounted tickets and a helpful route map showing all of the city's Modernista buildings. In Madrid, the Prado Museum's expansion continues in 2008 and may jumble the museum's layout. A new memorial at the Atoche Metro station remembers the victims of the March 11, 2004 terrorist bombing. Walk beneath the 36-foot-high glass cylinder to read thousands of condolence messages in many languages. Interactive terminals allow you to leave a handprint or a message, or watch a memorial video.