Las Olas Boulevard is the most interesting downtown area for tourists. To explore downtown and the beaches, hop the Fort Lauderdale Sun Trolley on Fridays, Saturdays, or Sundays between 10 am and midnight. Just wave at a passing trolley, which will stop to let you board. If you're traveling with kids, stop by the Funderdome indoor playground or the Museum of Discovery and Science—admission to the science center is free if you hold an annual pass to any of 300 science centers across the country. Admission is also free to the 18,000 square-foot Fort Lauderdale Antique Car Museum, a paradise within paradise for car buffs.