Downtown San Antonio’s 2 Newest Attractions open in May 2019! LEGOLAND Discovery Center is the Ultimate Indoor LEGO® Playground! LEGOLAND Discovery Center San Antonio will feature ten themed LEGO play zones, LEGO San Antonio MINILAND®, two LEGO themed rides and our 4D cinema. SEA LIFE San Antonio is an amazing underwater world complete with beautiful creatures from local and international waters. This fun, family-friendly experience aims to amaze and educate visitors with a love for our ocean.