Historic Centre and Zócalo (UNESCO World Heritage Site)
The starting point for any visit is the Zócalo — the vast central plaza that has been the heart of this city for 700 years, first as the ceremonial core of Tenochtitlan and now as the symbolic centre of Mexico. Walking around it, I found the accumulated layers of history almost overwhelming in the best way: the Metropolitan Cathedral (the largest in Latin America, built directly over Aztec temples), the National Palace with Diego Rivera's extraordinary murals depicting Mexican history floor to ceiling, and the Templo Mayor ruin right at the corner. The Templo Mayor archaeological site deserves a dedicated morning — you can walk through the excavated Aztec ceremonial complex and visit the adjoining museum, which houses some of the finest pre-Columbian artefacts in the world. Book timed-entry tickets online in advance; queues without them can be long. Teenagers with any interest in history tend to find this genuinely compelling — it is not dry classroom history, it is a civilisation literally underfoot.
Xochimilco Floating Gardens (UNESCO World Heritage Site)
Xochimilco is the other half of the UNESCO designation, and it is not to be missed. The network of ancient canals — remnants of the chinampas (raised garden islands) that fed the Aztec capital — is still in active agricultural use today, the only surviving example of this system anywhere on earth. Hiring a trajinera (a flat-bottomed, brightly painted boat) for a few hours is one of the most joyful family experiences in Mexico: you drift through the waterways while other boats pull alongside selling food, drinks, and music. Weekends are more festive; weekdays are quieter. The journey from central Mexico City takes 40–50 minutes by metro and bus or around 30 minutes by Uber. Plan a weekend morning to hit it before the afternoon crowds.
Museo Nacional de Antropología
This is simply one of the best museums in the world. The National Anthropology Museum in Chapultepec Park houses the largest collection of pre-Columbian artefacts on the planet, displayed across two levels surrounding a spectacular courtyard. The Mexica (Aztec) room with the famous Sunstone calendar, the Maya galleries, and the Monte Albán Zapotec collections are extraordinary. Allocate a full morning — it is genuinely unmissable, and teenagers who arrive sceptical invariably leave impressed. Entry is inexpensive by UK standards; check for free-entry Sundays.
Chapultepec Park and Castle
Adjacent to the Anthropology Museum, Chapultepec is the green lung of Mexico City — a vast urban park with two lakes, multiple museums, a zoo, and the Chapultepec Castle perched on a hill above it all. The castle (a former imperial palace and military academy with sweeping views over the city) is worth the climb, and the park itself is ideal for a slower afternoon between museum visits. Families with younger teens appreciate having somewhere to decompress after intensive sightseeing.
Palacio de Bellas Artes and the Historic Streets
The ornate Palacio de Bellas Artes — an art nouveau and art deco landmark housing murals by Rivera, Orozco, and Siqueiros — is a short walk from the Zócalo and free to enter the ground floor. The pedestrianised streets of the centro histórico (particularly Madero and Donceles) reward slow exploration: colonial architecture at every turn, bookshops, street food stands, and the occasional hidden courtyard. The funicular to the Palacio de Minería courtyard is a teen-pleaser.
Frida Kahlo Museum (Casa Azul)
In Coyoacán, the cobalt-blue house where Frida Kahlo was born and died is one of the most visited museums in the city — and rightly so. The museum is intimate and human-scale, with original artworks, her studio, and personal belongings that make her life feel vivid and immediate. Book tickets online well in advance — same-day tickets are rarely available, and walk-up queues can mean a very long wait. Good for teenagers interested in art, feminism, identity, or Mexican culture; less engaging for very young children.
Street Food and Markets
No visit to Mexico City is complete without diving into the food markets. The Mercado de Coyoacán and the Mercado Jamaica are both excellent for street food eaten standing up or at shared tables — a taco, a tlayuda, a bowl of pozole. The Mercado de Medellín in Roma serves both fresh produce and cooked food, and has an excellent section of Caribbean and international groceries. Street food in the centro histórico is outstanding and very affordable. Teens who are adventurous eaters will love exploring; for those who need a gentler introduction, the food court-style markets are perfect.