1. The Arc de Triomf is a triumphal arch located in Barcelona, Spain. It was built as the gateway to the 1888 Barcelona World Fair and is one of the most iconic landmarks of the city. The arch is made out of red brick and decorated with ornate sculptures and reliefs. Its design is inspired by the Moorish and Mudéjar styles, which were popular in Spain in the 19th century.

Interesting facts about the Arc de Triomf include:

- The arch is not actually a monument to military triumph, despite its name. It was built to celebrate science, industry, and art.

- The arch is located at the end of Passeig de Lluís Companys, a tree-lined promenade that leads up to the Parc de la Ciutadella.

- The sculptures on the arch represent different Spanish regions and their products, such as Castilla and its wheat or Valencia and its oranges.

- The arch was used as a backdrop for the opening scene of the movie \"All About My Mother\" by Pedro Almodóvar.

- During summertime, the area around the arch is a popular spot for street performers, musicians, and dancers.

2. The Arc de Triomf is a public monument and is open to visitors at all times. There is no entrance fee or ticket required to see the arch. However, there is a small museum inside the arch that can only be visited with a guided tour. The museum showcases the history and architecture of the arch and has a small collection of artifacts from the 1888 World Fair.

The phone number of the Arc de Triomf is +34 932 56 10 00. However, this phone number is for Barcelonatur, a tourist information center, and not specifically for the arch.

3. The Arc de Triomf is located in the Eixample district of Barcelona and is easily accessible by public transportation. The closest metro station is Arc de Triomf (Line 1) and there are several bus routes that stop nearby. The arch is also within walking distance of the Parc de la Ciutadella and the El Born neighborhood.