Luxurious Berlin hotels in top locations rarely drop prices below $200. But the 4-star Westin Grand, Berlin is offering an unadvertised rate of $145-$155 (€110-€119) per night.

Travel midweek (Sunday-Thursday nights) through May 11 to secure this pre-paid rate -- which includes all taxes and saves 30% on the hotel's regular prices. Note: Prices for the week of April 20 will be slightly higher.

Located in the vibrant Mitte district, the Westin Grand, Berlin is close to many of the city's top attractions -- including the Brandenburg Gate, Potsdamer Platz, Berlin Cathedral, Guggenheim Museum and Galeries Lafayette Shopping Mall. The hotel completed a €15 million refurbishment in 2008, and its rooms feature floor-to-ceiling windows offering views of the 2,700-square-meter hotel gardens.