Inaugurated in 1890, the Arriaga Theatre is a Neo-baroque opera house named after the Bilbao-born composer Juan Crisóstomo de Arriaga, often referred to as the 'Spanish Mozart'. Inspired by the Paris Opera House, it became a key cultural venue in Bilbao. The original theatre burned down in 1914 and was rebuilt, reopening in 1919. Today, it hosts opera, ballet, classical concerts, and theatre productions. Guided tours give a behind-the-scenes look at the staircases, Royal Box, and costume collection.

The Las Vegas Strip is probably the world's best-known boulevard stretch, so do prepare yourself for an intense few hours among casinos, restaurants, stores, top-notch hotels, and many other establishments. One of the most popular activities is taking pictures with people dressed up as the famous, and one of the choices is Marilyn Monroe, Elvis, and even Alan from the movie "The Hangover." After having been here during the day, come back at night to rediscover the Strip, and for getting both dizzy and amazed in this sea of shimmering neon lights.

Built from the late 14th to the 15th centuries, the Santiago Cathedral is the city’s oldest major church, dedicated to Saint James (Santiago), Bilbao's patron saint. The building features a mix of different styles: its core is Gothic (nave, vault, cloister), a grand Renaissance portico was added in the 1500s, while much of the façade and tower with spire were rebuilt in a neo-Gothic style in the late 1800s by Severino de Achúcarro. Inside, you’ll see three naves, several side chapels, the Gothic cloister accessible via the Door of the Angel ('Puerta del Ángel'), and beyond the main altar, there’s an ambulatory with chapels. Floods in 1983 caused damage, but the cathedral was restored and reopened around 2000.