Quinta da Regaleira (a.a “Palace of Monteiro the Millionaire”) is an estate located near the center of Sintra, Portugal. Quinta da Regaleira is probably the biggest tourist attractions of Sintra. Quinta da Regaleira includes a Romantic palace
Melissani Cave, on Kefalonia Island in Greece, features a sky-blue lake within the cave. The lake is shallow and clear, and is covered with stones at the bottom. The cave was rediscovered in (In Greek mythology, Melissani was the cave of the nymphs.