• The best times to visit are during the spring (April to June) and fall (September to October) when the weather is mild and tourist numbers are lower.

It depends on your nationality. Many travelers can enter Austria, the Czech Republic, and Hungary without a visa for short stays, while others may need to apply for a Schengen visa.

Vienna and Budapest use the Euro (EUR), while Prague uses the Czech Koruna (CZK). Credit cards are widely accepted, but it’s good to have some local currency for small purchases.

• Generally, Vienna, Prague, and Budapest are safe for tourists, but you should still take standard precautions against petty crime like pickpocketing.

In Vienna and Budapest, the official languages are German and Hungarian, respectively. In Prague, the official language is Czech. English is commonly spoken in tourist areas.

Vienna: Schönbrunn Palace, St. Stephen’s Cathedral, Belvedere Palace, and the Vienna State Opera. Prague: Charles Bridge, Prague Castle, Old Town Square, and the Astronomical Clock. Budapest: Buda Castle, Fisherman’s Bastion, Parliament Building, and Széchenyi Thermal Bath.

Public transport is excellent in all three cities: Vienna has trams and metros; Prague has trams and a metro system; Budapest has buses, trams, and a metro. Walking is also a great way to explore.

Each city has its specialties: try Wiener Schnitzel in Vienna, Trdelník (a sweet pastry) in Prague, and Goulash in Budapest.

Consider booking tickets online in advance for popular attractions, or join guided tours that offer skip-the-line access.

Each city has its own cultural norms, but general politeness, such as greeting shopkeepers and saying thank you, is appreciated.