Considered the cultural center of Mexico City, the Palacio de Bellas Artes (Palace of Fine Arts) is a must-visit. The exterior of the palace showcases art nouveau and art deco-style architecture, while the inside features marble floors and vaulted glass windows. 

In addition to its architectural grandeur, the building hosts cultural events in the national theater, including music, dance, theatre, opera and literary performances. The palace also holds several famous murals, including the work of the famous Mexican muralist Rufino Tamayo. On the top floor, you'll find the National Museum of Architecture, which showcases the work and lives of famous Mexican architects, and multiple art museums and galleries. 

Travelers say that the palace is sure to be one of the most beautiful sights you'll see in Mexico City. Visitors to the palace say that if you get the chance, take in a performance in the world-class theater. 

The palace is open Tuesday through Sunday from 10 a.m. to 6 p.m. Admission is 60 pesos (about $3.30), but you can save money by visiting on Sundays when admission is free. Rates for performances vary by discipline. For more information, check out the palace's website.