Museum
Nantucket Whaling Museum
One of the island's highlights, this evocative museum occupies an 1847 spermaceti (whale oil) candle factory and the excellent exhibits relive Nantucket's 19th-century heyday as the whaling center of the world. There's a worthwhile, albeit long (54 minutes), documentary on the island, incredible scrimshaw exhibits (engravings and carvings done by sailors on ivory, whalebone or baleen) and a 46ft sperm-whale skeleton rising above it all. Be sure to head to the rooftop deck for lovely views.