Hilton Arc de Triomphe Paris in May will celebrate its five-year anniversary. To mark the occasion, the hotel is launching two offers throughout the month of May. With the Give Me Five promotion, guests who book a five-night stay will receive an additional night free. With the Five-Year Anniversary Upgrade promotion, guests can upgrade to suite accommodations for only five euros. Suite accommodations boast a living room and include Executive Lounge access with free breakfast and refreshments, and complimentary access to the Hydro Zone at Spa Mosaic. Rates for both anniversary offers start at 295 euros.