Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Secret refuge and museum of the Duke of Florence.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Founded as a refugee camp, now a popular tourist spot.

Exact replica of the ancient monument, but much, much lighter.