Prince of Wales Zoological Gardens or popularly known as Lucknow Zoological Garden (Hindi: लखनऊ चिड़ियाघर, Urdu: لکھنؤ چڑیاگھر Lakhnaū Ciṛiyāghara) is a 71.6-acre (29.0 ha) zoo located in the heart of the capital city of Uttar Pradesh. The Central Zoo Authority of India categorizes it as a large zoo. The Prince of Wales Zoological Gardens, popularly known as Lucknow Zoological Gardens, was established in the year 1921 to commemorate the visit of His Royal Highness, the Prince of Wales to Lucknow.