If you're traveling internationally, you'd be wise to arm yourself with an International Student Identity Card (ISIC), which offers substantial savings on rail passes, plane tickets, and entrance fees. It also provides you with basic health and life insurance and a 24-hour helpline. The card is available from STA Travel (tel. 800/781-4040 in North America; www.sta.com or www.statravel.com; or www.statravel.co.uk in the U.K.), the biggest student travel agency in the world. If you're no longer a student but are still under 26, you can get an International Youth Travel Card (IYTC) from the same people; this entitles you to some discounts (but not on museum admissions). Travel CUTS (tel. 800/667-2887 or 416/614-2887; www.travelcuts.com) offers similar services for both Canadians and U.S. residents. Irish students may prefer to turn to USIT (tel. 01/602-1600; www.usitnow.ie), an Ireland-based specialist in student, youth, and independent travel.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.