Pssst . . . Want in on a Secret?--Toronto has a unique museum that is one of the city's best-kept secrets. It's the History of Contraception Museum, at the Janssen-Ortho building, 19 Green Belt Dr. (tel. 416/449-9444). The collection occupies an airy atrium and contains more than 600 items, some of which will make your jaw drop. (Ever wonder what mule earwax, weasel testicles, and crocodile dung have in common? This is your chance to find out.) The museum is extremely well curated, and many of the prophylactics have fascinating stories behind them.

The only downside to the museum is that it's far off the beaten track -- though the Ontario Science Centre is just a 5-minute drive away. If you've already made it that far, hop on a southbound Don Mills Road bus; there's a stop at Green Belt Drive, and the Janssen-Ortho building is a 2-minute walk up the street. It's open Monday through Friday from 9am to 5pm, and admission is free.