American Express -- The nearest office is in Brussels.
Currency Exchange -- One thing Luxembourg City isn't short of is banks, and around town there are branches with ATMs. To change money or use an ATM close to the Gare Centrale rail station, go to Kredietbank Luxembourg, place de la Gare 5-7 (tel. 47-97-60-01). Currency-exchange offices are open daily at the airport and at Gare Centrale.
Doctor & Dentist -- Call tel. 112 for referrals to English-speaking doctors and dentists.
Emergencies -- For police assistance, call tel. 113. For an ambulance or the fire department, call tel. 112.
Hospitals -- The most important city hospital is the modern Centre Hospitalier de Luxembourg, rue Emile Barblé 4 (tel. 44-11-11; www.chl.lu; bus no. 7), off route d'Arlon in the northwest of the city.
Police -- In an emergency, call tel. 113. For routine matters, go to central police headquarters, rue Glesener 60 (tel. 40-94-04-400; www.police.public.lu).
Post Office -- The main post office, rue Aldringen 25 (tel. 47-65-1; www.ept.lu), is open Monday to Friday from 7am to 7pm, and Saturday from 7am to 5pm.
Safety -- Luxembourg City is a safe, low-crime city. There are no dangerous or unsafe areas. That's not to say being a victim of crime is impossible, just that it's extremely unlikely.
Transit Info -- Public transportation information for Luxembourg City is available from ADL (tel. 47-98-29-57; www.autobus.lu); and Chemins de Fer Luxembourgeois (tel. 49-90-49-90; www.cfl.lu) for train and bus service around the Grand Duchy.