Strongly influenced by European, Andean, African and Asian culture, Lima is a melting pot of cultures due to colonisation, immigration, and indigenous influences. Lima has developed a tourism industry characterised by its historic centre, archaeological sites, nightlife, museums, art galleries, festivals, and traditions. The historic centre of Lima was declared a UNESCO World Heritage Site in 1988. The city’s international cuisine has made Lima known as the gastronomical capital of the Americas. Lima's beaches are very popular during the summer months. There is a vibrant and active theater scene, including classic theater, cultural presentations, modern theater, experimental theater, dramas, dance performances, and theatre for children.