America's only royal residence was built in 1882 on the site of an earlier palace. It contains the thrones of King Kalakaua and his successor (and sister) Queen Liliuokalani, who was imprisoned in her home after the 1893 overthrow. Bucking the stereotype of simple island life, the palace had electricity and telephone lines installed even before the White House. Downstairs galleries showcase the royal jewelry and a kitchen and offices restored to the glory of the monarchy. The palace is open for guided or self-guided audio tours, and reservations are recommended. If you're set on taking a guided tour, call for reservations a few days in advance. The gift shop was formerly the Iolani Barracks, built to house the Royal Guard. www.iolanipalace.org. COST: $22 guided tour, $15 audio tour, $7 downstairs galleries only. OPEN: Mon.--Sat. 8:30--4, guided tours every 15 min in the morning, self-guided audio tours in the afternoon.